Article: 101009 of rec.radio.amateur.boatanchors Date: Mon, 12 Dec 2005 16:55:08 -0400 From: Bill Subject: Re: SS Rectifier conversion volts drop References: <1134248919.573979.95640@g44g2000cwa.googlegroups.com> <1134306247.539407.304600@g49g2000cwa.googlegroups.com> Message-ID: Scott Dorsey wrote: > > > You're not missing anything. Although I recommend buying only caps > rated for 105'C because they seem also to last longer than the 85'C > spec ones. But that's exactly what I mean. > -scott The way it was explained to me is that the 105's use a different electrolyte and tend to have lower ESR, etc. I used to bench repair a certain power supply that would make short work of ruining an 85...only a 105 would hold up. And it wasn't a heat issue. They seem to be worth the few extra pennies in cost. -Bill Article: 101010 of rec.radio.amateur.boatanchors From: chris+news@suslowicz.org (Chris Suslowicz) Subject: Re: This Place is Directly Linked to Google Groups? Date: Tue, 13 Dec 2005 00:02:12 +0000 Message-ID: References: <439C4FB2.99A06811@earthlink.net> In article , chris+news@suslowicz.org (Chris Suslowicz) wrote: >Stick to real usenet, it's a lot less trouble. 8-)> >Chris. > >-- >If you want a picture of the future of Usenet, imagine a foot stuck in a >human mouth -- for ever. And remember that it is for ever. The mouth >will always be there to receive the foot. The kook, the enemy of Usenet, >will always be there, so that he can be defeated and humiliated over again. References: <439C4FB2.99A06811@earthlink.net> In article , "Steve Nosko" wrote: >In typical comment about context rather then content, Steve N. says: > > >Chris, > Forever is one word... Not in the original, it isn't. Curiously enough, Eric wrote the book and Anthony seems determined to implement it. Chris. -- If a thoroughly plonked troll enters a newsgroup, does it make a sound? Article: 101012 of rec.radio.amateur.boatanchors From: "KC0EH" Subject: WTB: 222MHz. TRANSVERTER Message-ID: Date: Mon, 12 Dec 2005 18:56:00 -0600 I am interested in buying a 222 transverter to get on SSB/CW. Also interested in amplifier and antennas. Please state price and condition. Thanks, ...Charlie...KC0EH... Article: 101013 of rec.radio.amateur.boatanchors From: "Dale Parfitt" Subject: F.A. Turner 258 Microphone Message-ID: Date: Tue, 13 Dec 2005 01:39:23 GMT http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:L:LCA:US:31&item=5841137662 Article: 101014 of rec.radio.amateur.boatanchors From: Dr. Anton T. Squeegee Subject: Re: Sunair Manual Sought Date: Mon, 12 Dec 2005 19:10:24 -0800 Message-ID: References: In article , densmore@idirect.com says... > Greetings, > Have recently aquired a Sunair GSE-924 which is a HF transmitter (100 watt). > I can find very little info on these. Does anyone have, or know of a source > for a manual for one of these radios? Sunair is still very much in business, and they will sell copies of manuals for their older radios. However, said books are not cheap. Expect to pay at least USD $125. http://www.sunairhf.com/ Happy hunting. -- Dr. Anton T. Squeegee, Director, Dutch Surrealist Plumbing Institute. (Known to some as Bruce Lane, ARS KC7GR, kyrrin (a/t) bluefeathertech[d=o=t]calm -- www.bluefeathertech.com "If Salvador Dali had owned a computer, would it have been equipped with surreal ports?" Article: 101015 of rec.radio.amateur.boatanchors From: "Jim McShane" Subject: FS: Transmitting Tubes Message-ID: Date: Tue, 13 Dec 2005 03:30:39 GMT I have accumulated some transmitting types that are really unfamiliar to me, as I specialize in audio and guitar tubes. Rather than just let them sit, I'd like to find them a good home. Most are JAN or FAA designated, all are USA made. I've priced them at about 1/2 of what the typical price was that I could find on the web. I can't test most of them, but all are guaranteed not to be D.O.A., or I'll refund the price. Here's the list - it's the quantity, then the tube number, followed by the "web" price (mostly from RES or RF Parts), then the selling price: Qty. Type Web Price My Price ea. 1 2K25 $25.00 $13.00 1 3E29 (829A) $14.00 $7.00 1 5D21 $42.00 $21.00 1 705A $10.00 $5.00 3 815 $15.00 $8.00 1 826 $35.00 $18.00 2 829B $14.00 $7.00 2 832A $7.00 $4.00 1 8122 (used?) $225.00 $75.00 1 7034/4X150A $90.00 $40.00 (new in box Eimac) (3) 4-125A/4D21 $95.00 ea. $50.00 ea. (2 Eimac, 1 GE) Drop me a note if you can use any of these tubes, they need a good home. Thanks so much! Jim McShane Need Tubes? Got a H-K Citation (Pre) Amp? Check http://pages.prodigy.net/jimmcshane Repro knobs for Citation gear in stock! Article: 101016 of rec.radio.amateur.boatanchors From: "Jim McShane" References: Subject: Re: Transmitting Tubes Message-ID: Date: Tue, 13 Dec 2005 04:16:14 GMT Here's a price list better formatted I hope! Qty. Type Web Price My Price ea. 1 2K25 $25.00 $13.00 1 3E29 (829A) $14.00 $7.00 1 5D21 $42.00 $21.00 1 705A $10.00 $5.00 3 815 $15.00 $8.00 1 826 $35.00 $18.00 2 829B $14.00 $7.00 2 832A $7.00 $4.00 1 8122 (used?) $225.00 $75.00 1 7034/4X150A $90.00 $40.00 (new in box Eimac) (3) 4-125A/4D21 $95.00 ea. $50.00 ea. (2 Eimac, 1 GE) Sorry for the first list being screwed up. Jim McShane Need Tubes? Got a H-K Citation (Pre) Amp? Check http://pages.prodigy.net/jimmcshane Repro knobs for Citation gear in stock! Article: 101017 of rec.radio.amateur.boatanchors Message-ID: <439E6410.449663BE@earthlink.net> From: "Michael A. Terrell" Subject: Re: This Place is Directly Linked to Google Groups? References: <439C4FB2.99A06811@earthlink.net> Date: Tue, 13 Dec 2005 06:03:08 GMT Phil Nelson wrote: > > "Michael A. Terrell" wrote in message > news:439C4FB2.99A06811@earthlink.net... > > Google groups is nothing more than a HTML portal into Usenet. They > > also have the old Dejavu Usenet archives. > > I use "original recipe"-style USENET access for everyday entry to > newsgroups. But Google's archives are useful for searching. Many times, I > have found answers by searching the archives rather than posting a new > question. Quicker, and it avoids repetitive postings. > > A recent example is the "SS Rectifier conversion volts drop" topic in this > group. If you search this newsgroup, or one like rec.antiques.radio+phono, > for subjects like "rectifier voltage drop", etc., you'll find plenty to > read. > > Regards, > > Phil Nelson > Phil's Old Radios > http://antiqueradio.org/index.html Phil, I was doing that when it was still called DEJA. ;-) I still use Netscape 4.78 to access Usenet. Its a clean and useful format that allows me to read a lot more messages in a given time. I have tried a number of other "mail and news" software, but I keep going back to the old netscape software. Also, I have a large private archive of Usenet posts that may come in handy later on. I can open them with a word processor and do a keyword search without having to be on line at the time. For instance, I have archived 1356 files from this newsgroup. -- ? Michael A. Terrell Central Florida Article: 101018 of rec.radio.amateur.boatanchors Message-ID: <439E663F.98E53084@earthlink.net> From: "Michael A. Terrell" Subject: Re: Transmitting Tubes References: Date: Tue, 13 Dec 2005 06:12:27 GMT Jim McShane wrote: > > Here's a price list better formatted I hope! > > Qty. Type Web Price My Price > > ea. > > 1 2K25 $25.00 $13.00 > > 1 3E29 (829A) $14.00 $7.00 > > 1 5D21 $42.00 $21.00 > > 1 705A $10.00 $5.00 > > 3 815 $15.00 $8.00 > > 1 826 $35.00 $18.00 > > 2 829B $14.00 $7.00 > > 2 832A $7.00 $4.00 > > 1 8122 (used?) $225.00 $75.00 > > 1 7034/4X150A $90.00 $40.00 > (new in box Eimac) > > (3) 4-125A/4D21 $95.00 ea. $50.00 ea. > (2 Eimac, 1 GE) > > Sorry for the first list being screwed up. > > Jim McShane > Need Tubes? Got a H-K Citation (Pre) Amp? > Check http://pages.prodigy.net/jimmcshane > Repro knobs for Citation gear in stock! Create list like this in a fixed width font like "Courier new" so they will stay in neat columns. Change to a fixed font and look at this: Qty Type Web Price My Price (each) (each) 1 2K25 $25.00 $13.00 1 3E29 (829A) $14.00 $7.00 1 5D21 $42.00 $21.00 1 705A $10.00 $5.00 3 815 $15.00 $8.00 1 826 $35.00 $18.00 2 829B $14.00 $7.00 2 832A $7.00 $4.00 1 8122 (used?) $225.00 $75.00 1 7034/4X150A $90.00 $40.00 (new in box Eimac) 3 4-125A/4D21 $95.00 $50.00 (2 Eimac, 1 GE) -- ? Michael A. Terrell Central Florida Article: 101019 of rec.radio.amateur.boatanchors Message-ID: <439EC8F8.8030108@nospamfuse.net> Date: Tue, 13 Dec 2005 08:13:28 -0500 From: "J. D. B." Subject: Re: ARRL Handbooks FS References: <43934b26.3082791@news.east.earthlink.net> LOL - another ignorant fool. And they say a code test keeps the whack-jobs out. Guess that is not so. Doc wrote: > I wouldn't wast a dime on anything that had "ARRL" > printed on it. > > > FCC & ARRL - Partners in the Culture of Corruption > > > > Article: 101020 of rec.radio.amateur.boatanchors Date: Tue, 13 Dec 2005 08:14:22 -0500 From: "J. D. B." Subject: Re: ARRL Handbooks FS References: <43934b26.3082791@news.east.earthlink.net> Message-ID: LOL - another ignorant fool. And they say a code test keeps the whack-jobs out. Guess that is not so. Doc wrote: > I wouldn't wast a dime on anything that had "ARRL" > printed on it. > > > FCC & ARRL - Partners in the Culture of Corruption > > > > Article: 101021 of rec.radio.amateur.boatanchors From: "YT" References: <439E663F.98E53084@earthlink.net> Subject: Re: Transmitting Tubes Message-ID: Date: Tue, 13 Dec 2005 15:07:50 GMT > Create list like this in a fixed width font like "Courier new" so they > will stay in neat columns. Change to a fixed font and look at this: Fixed font only is relevant if your newsreader is using the same font, otherwise the display is still same - good idea though. Article: 101022 of rec.radio.amateur.boatanchors From: "Jim McShane" References: <439E663F.98E53084@earthlink.net> Subject: Re: Transmitting Tubes Message-ID: Date: Tue, 13 Dec 2005 15:49:54 GMT > > Create list like this in a fixed width font > > like "Courier new" so they will stay in neat > > columns. Change to a fixed font and look at this: > > > Fixed font only is relevant if your newsreader is > using the same font, otherwise the display is still > same - good idea though. Right you are! Thanks to Michael, it won't help in this case but I appreciate the thought and help. Merry Christmas! Jim McShane Need Tubes? Got a H-K Citation (Pre) Amp? Check http://pages.prodigy.net/jimmcshane Repro knobs for Citation gear in stock! Article: 101023 of rec.radio.amateur.boatanchors Message-ID: <439EF2E0.B0968C10@earthlink.net> From: "Michael A. Terrell" Subject: Re: Transmitting Tubes References: <439E663F.98E53084@earthlink.net> Date: Tue, 13 Dec 2005 16:12:45 GMT YT wrote: > > > Create list like this in a fixed width font like "Courier new" so they > > will stay in neat columns. Change to a fixed font and look at this: > > Fixed font only is relevant if your newsreader is using the same font, > otherwise the display is still same - good idea though. It won't look right with different variable width fonts either. Try to figure out a ASCII schematic drawn in a variable width font sometime and you'll switch your setting to fixed font. All fixed fonts use the same character spacing, its the variable fonts that are variable. ;-) -- ? Michael A. Terrell Central Florida Article: 101024 of rec.radio.amateur.boatanchors From: Robert Kubichek Subject: Re: Transmitting Tubes Date: Tue, 13 Dec 2005 10:28:06 -0600 Message-ID: <408b4nF19ajhrU1@individual.net> References: <439E663F.98E53084@earthlink.net> YT wrote: >>Create list like this in a fixed width font like "Courier new" so they >>will stay in neat columns. Change to a fixed font and look at this: > > > > Fixed font only is relevant if your newsreader is using the same font, > otherwise the display is still same - good idea though. > > Better yet, separate the items in line with d-a-s-h-e-s, or u_n_d_e_r_l_i_n_e_s, any character will work actually. The message may look funny, but is readable in any browsers font setting... 8-) -- Bob N9LVU Article: 101025 of rec.radio.amateur.boatanchors From: novatech@eskimo.com (Steven Swift) Subject: D7-200GH CRT Data sheet. Date: 13 Dec 2005 21:37:02 GMT Message-ID: While cruising the web, I found a site that needed this data sheet. Since I had to scan it anyway, here is a posting of Brimar's D7-200GH small CRT data sheet. Apparently it is reasonably hard to find. http://novatech-instr.com/Fun/d7-200gh.pdf It's about 1MB. Steve. -- Steven D. Swift, novatech@eskimo.com, http://www.novatech-instr.com NOVATECH INSTRUMENTS, INC. P.O. Box 55997 206.301.8986, fax 206.363.4367 Seattle, Washington 98155 USA Article: 101026 of rec.radio.amateur.boatanchors From: "Dale Parfitt" References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: Date: Wed, 14 Dec 2005 01:10:56 GMT "Too_Many_Tools" wrote in message news:1134520239.071671.96720@g44g2000cwa.googlegroups.com... > With the holiday season here it is time to redo the workshop and the > workbench in particular. > > So, what suggestions do you have for setting up a good efficient > workspace for electronics? > > Here's an example that I found.... > > http://www.stevenjohnson.com/workbench.htm > > So what does your workspace, test bench and layout look like? > > Pictures and links would be great. > > What has worked for you?...what hasn't? > > Benches, racks, cabinets, tables, carts.... > > Any particular test equipment that you would recommend for or against? > > Thanks > > TMT Here's a couple pix of my shop. For test equipment- stick with the knowns- HP/Agielnt, Tektronix etc. http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP_3 W4OP > Article: 101027 of rec.radio.amateur.boatanchors Message-ID: <439F781E.5B795175@earthlink.net> From: "Michael A. Terrell" Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <439F7477.9ECE0621@shaw.ca> Date: Wed, 14 Dec 2005 01:41:39 GMT Irv Finkleman wrote: > > If I ever manage to get to the point where I can find the bench > underneath the clutter I will be more than happy to send you a photo > of it. I should have taken one when it was new for sentimental > reasons! :-) > > Irv VE6BP > > P.S. If you think the bench is bad, you should see the shack! news:alt.binary.pictures.radio has a contest from time to time with pictures of workbenches and home shops. Its about time for someone to post another "My bench" photo and start another round over there. -- ? Michael A. Terrell Central Florida Article: 101028 of rec.radio.amateur.boatanchors From: "Arfa Daily" References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: Date: Wed, 14 Dec 2005 01:46:30 GMT "Tim Wescott" wrote in message news:gLydnT-cMZJR7ALeRVn-vA@web-ster.com... > Too_Many_Tools wrote: >> With the holiday season here it is time to redo the workshop and the >> workbench in particular. >> >> So, what suggestions do you have for setting up a good efficient >> workspace for electronics? >> >> Here's an example that I found.... >> >> http://www.stevenjohnson.com/workbench.htm >> >> So what does your workspace, test bench and layout look like? >> >> Pictures and links would be great. >> >> What has worked for you?...what hasn't? >> >> Benches, racks, cabinets, tables, carts.... >> >> Any particular test equipment that you would recommend for or against? >> >> Thanks >> >> TMT >> > My workbench looks like an absolute fright unless I've been very > unproductive (and therefore have had time to clean), or I've reached a > standstill (and therefore must clean). > > Otherwise I just look at the pile and ask myself how long ago I used a > particular tool, then I look that far down to find it. > > -- > > Tim Wescott > Wescott Design Services > http://www.wescottdesign.com Oh deep joy !!! That is a perfect description of my workshop. I wish I could keep it looking like the pictures in the post above. I have as much benchspace, but on an average day, probably about 18" to 2 foot available ... On another similar sized bench behind me, I have one of the workshop computers, the weather sat receiving equipment, and my amateur radio station. On that bench, on a good day, there's just about room for the station logbook ! Arfa Article: 101029 of rec.radio.amateur.boatanchors From: "Jeff L" References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: <8vLnf.139159$Ph4.4254769@ursa-nb00s0.nbnet.nb.ca> Date: Wed, 14 Dec 2005 02:32:36 GMT "Spehro Pefhany" wrote in message news:sqvup15ojgkave2s0seqhbf9tka5b2fqsn@4ax.com... > On Wed, 14 Dec 2005 01:10:56 GMT, the renowned "Dale Parfitt" > wrote: > > > >Here's a couple pix of my shop. For test equipment- stick with the knowns- > >HP/Agielnt, Tektronix etc. > >http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP > >http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP_3 > > > >W4OP > > Nice and neat. What are those cool vertical outlet boxes-- a > commercial product? > Those look like part of the bench - I know some of the brands of benches available used to have the plugs there. My benches have a 6' strip with plugs every 3 - 4" that we bought from I believe Tripp Lite last summer. They were quite reasonable with a lighted, covered switch, circuit breaker, a 10 to 15' long heavy grounded cord, with a nice extruded aluminum housing for ~$70 CND @ something like 7 qty. They make many styles and lengths. Jeff > What kind of a critter lives in that bed beside the Tek scope? > > > Best regards, > Spehro Pefhany > -- > "it's the network..." "The Journey is the reward" > speff@interlog.com Info for manufacturers: http://www.trexon.com > Embedded software/hardware/analog Info for designers: http://www.speff.com Article: 101030 of rec.radio.amateur.boatanchors From: jpero@sympatico.ca (Jason D.) Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: <439f8780.198399453@news1.on.sympatico.ca> References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> Date: Wed, 14 Dec 2005 02:57:16 GMT On 13 Dec 2005 16:30:39 -0800, "Too_Many_Tools" wrote: >With the holiday season here it is time to redo the workshop and the >workbench in particular. > >So, what suggestions do you have for setting up a good efficient >workspace for electronics? > Size of stuff to fix upon determines the design of bench and tools. I'm TV tech; Big ones like 36'ers demands at least 5 feet by 10 even more feet bench to allow for tools to lay besides the unit. I have wished I had that because of few CTC210/DTV306/etc that needed the depth so I can push the unit way forward so I can eagle spread the crowded chassis that weighs a tonne and clumsy to handle just to freaking replace 10 parts in worst places. Lot of chassis flipping just to see as you put new parts in and remove and resolder transformer for that R14609 tiny 10 ohm resistor that's now a black crater, that D14611 did to components in standby SMPS. Be make sure the bench is high enough so you don't bend over so low but not too high to heft heavy TV up there. Flat CRTs are heavy! Cheers, Wizard Article: 101031 of rec.radio.amateur.boatanchors Message-ID: <439FA234.396EE28E@earthlink.net> From: "Michael A. Terrell" Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134534650.642653.280610@g14g2000cwa.googlegroups.com> Date: Wed, 14 Dec 2005 04:41:22 GMT meow2222@care2.com wrote: > > The one thing I avoided like the plague, and still do, is those plastic > drawer racks with often open top drawer boxes. You've only got to move > one once to see what I mean! One spill and you'll never ever buy one > again. Small parts containers must have burst proof latches, I wont use > any that dont. I moved over 1000 miles in 1987 and I had 24 50 drawer Akro-Mills cabinets full of parts. I cut pieces of cardboard to cover the front and placed two of them face to face, then taped them together. I didn't have even one part out of place when I arrived at my new place and set up my shop. The move was done with my shop's step van and I hauled over 17,000 pounds of tools, parts, manuals and test equipment in two trips. there is nothing wrong with parts cabinets, if you know how to pack them. -- ? Michael A. Terrell Central Florida Article: 101032 of rec.radio.amateur.boatanchors From: "Mr Fed UP" References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <439f8780.198399453@news1.on.sympatico.ca> Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: Date: Tue, 13 Dec 2005 23:10:21 -0600 Gee Whizz this 36 inch I have weighs in at 200 pounds. Maybe you need to think about a motor hoist with straps or something. I know by myself this TV will never be moved. Maybe it can sell with the house some day. Good luck with the hernias. I have a 12 X 24 patio I am thinking of enclosing and making a shop... so I am following this thread too. lol where ever it goes K4TWO Gary "Jason D." wrote in message news:439f8780.198399453@news1.on.sympatico.ca... > On 13 Dec 2005 16:30:39 -0800, "Too_Many_Tools" > wrote: > >>With the holiday season here it is time to redo the workshop and the >>workbench in particular. >> >>So, what suggestions do you have for setting up a good efficient >>workspace for electronics? >> > > Size of stuff to fix upon determines the design of bench and tools. > > I'm TV tech; > Big ones like 36'ers demands at least 5 feet by 10 even more feet > bench to allow for tools to lay besides the unit. I have wished I had > that because of few CTC210/DTV306/etc that needed the depth so I can > push the unit way forward so I can eagle spread the crowded chassis > that weighs a tonne and clumsy to handle just to freaking replace 10 > parts in worst places. Lot of chassis flipping just to see as you put > new parts in and remove and resolder transformer for that R14609 tiny > 10 ohm resistor that's now a black crater, that D14611 did to > components in standby SMPS. > > Be make sure the bench is high enough so you don't bend over so low > but not too high to heft heavy TV up there. Flat CRTs are heavy! > > Cheers, Wizard Article: 101033 of rec.radio.amateur.boatanchors Message-ID: <439FAFDB.4ABD655A@earthlink.net> From: "Michael A. Terrell" Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> Date: Wed, 14 Dec 2005 05:39:44 GMT COLIN LAMB wrote: > > The last time my bench was clean was over a decade ago - after I learned I > had a very aggressive form of cancer. I reluctantly cleaned off the bench > to save my wife from having to do it. > > But, through the miracles of drugs, the cancer went away. Now, my desks are > all cluttered again. My wife fondly talks about how good life was when my > desk was clean and I had sold much of my junk. I think she is kidding, but > would not bet my life on it. > > When I clean an area, it is only temporary. > > At the constant prodding of my wife, I spend 3 months cleaning up the floor > of my darkroom. I found things that had been missing for years. But, I > could not clean up the desk, for it has all the little parts for which I do > not have a place for. > > In the end, messiness is really just the product of someone who has so much > order that he insists upon a place for each item before he puts it away. > > Colin K7FM A workbench is meant to be a living example of the moving hole theory. ;-) -- ? Michael A. Terrell Central Florida Article: 101034 of rec.radio.amateur.boatanchors From: James Sweet Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> Message-ID: Date: Wed, 14 Dec 2005 08:07:03 GMT Too_Many_Tools wrote: > With the holiday season here it is time to redo the workshop and the > workbench in particular. > > So, what suggestions do you have for setting up a good efficient > workspace for electronics? > > Here's an example that I found.... > > http://www.stevenjohnson.com/workbench.htm > > So what does your workspace, test bench and layout look like? > > Pictures and links would be great. > > What has worked for you?...what hasn't? > > Benches, racks, cabinets, tables, carts.... > > Any particular test equipment that you would recommend for or against? > > Thanks > > TMT > That's an amazing shop. My own is unfortunately nothing like it, far more cluttered with junk piled all over the place, I suspect it's typical of other hobby techs here. Article: 101035 of rec.radio.amateur.boatanchors From: xray Subject: Re: What Does Your Electronics Workshop Look Like? Date: Wed, 14 Dec 2005 02:54:57 -0800 Message-ID: References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> On Wed, 14 Dec 2005 01:10:56 GMT, "Dale Parfitt" wrote: > >"Too_Many_Tools" wrote in message >news:1134520239.071671.96720@g44g2000cwa.googlegroups.com... >> With the holiday season here it is time to redo the workshop and the >> workbench in particular. >> >> So, what suggestions do you have for setting up a good efficient >> workspace for electronics? >> >> Here's an example that I found.... >> >> http://www.stevenjohnson.com/workbench.htm >> >> So what does your workspace, test bench and layout look like? >> >> Pictures and links would be great. >> >> What has worked for you?...what hasn't? >> >> Benches, racks, cabinets, tables, carts.... >> >> Any particular test equipment that you would recommend for or against? >> >> Thanks >> >> TMT > >Here's a couple pix of my shop. For test equipment- stick with the knowns- >HP/Agielnt, Tektronix etc. >http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP >http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP_3 > >W4OP >> > Wow. You guys are amazingly neat. I always liked the cover of this book... http://www.kelvin.com/Merchant2/merchant.mv?Screen=PROD&Product_Code=651162 (Best picture of the cover that I could find quickly.) Probably hard to make out the details in that web picture, but the bench comes equipped with a crushed can of Mr. Pibb, and empty bag of Chips, and a tipped cup of Coffee (and a bunch of electronic stuff.) That's more like what my benches usually look like. Article: 101036 of rec.radio.amateur.boatanchors From: kludge@panix.com (Scott Dorsey) Subject: Re: Transmitting Tubes Date: 14 Dec 2005 10:51:33 -0500 Message-ID: References: <439E663F.98E53084@earthlink.net> In article , YT wrote: >> Create list like this in a fixed width font like "Courier new" so they >> will stay in neat columns. Change to a fixed font and look at this: > >Fixed font only is relevant if your newsreader is using the same font, No. Fixed fonts will ALL work. As long as the original post is in a fixed-width font, ANY fixed-width font will be fine to display it. >otherwise the display is still same - good idea though. Also sort of mandatory on Usenet. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." Article: 101037 of rec.radio.amateur.boatanchors From: "Mike Andrews" Subject: Re: What Does Your Electronics Workshop Look Like? Date: Wed, 14 Dec 2005 16:40:41 +0000 (UTC) Message-ID: References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> In rec.radio.amateur.boatanchors Dale Parfitt wrote: > Here's a couple pix of my shop. For test equipment- stick with the knowns- > HP/Agielnt, Tektronix etc. > http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP > http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP_3 In W4OP_2, what's the rightmost gadget? The one in the gray case, with the meter(?), some gray knobs, and 2 toggle switches on the front, and a black box on top of it? There's a printer behind it. Looks like you've got good taste in CAD tablets, too. -- Mike Andrews, W5EGO mikea@mikea.ath.cx Tired old sysadmin Article: 101038 of rec.radio.amateur.boatanchors From: John Hudak Subject: Re: What Does Your Electronics Workshop Look Like? Date: Wed, 14 Dec 2005 11:44:23 -0500 Message-ID: References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> While I haven't built my bench yet, I've been planning it a Looooong time. I've assembled this list from having lived in my dads shop for 15 years and worked at various research labs for 20.... 1. Desktop - I prefer a deep top, on the order of 40" or more. Reason being that when test equipment becomes attached to larger devices (i.e., TVs), space becomes a premium, and laying a schematic on a hot chassis is not a good idea ;). 2. I like the top shelf idea but would use it for test gear that doesn't need to be watched or interacted with a lot while in use. Scope and logic analyzer on the bottom, Frequency generators, PS, etc on the top. A verticle shelf of test gear along the side works good for me. 3. Lots of outlets/wire mold. Wiremold along the back with 1" x1" panduit wireway to keep the power cords routed. 4. Power cut off switches for parts of the bench. 5. power conditioning for all of the bench (CV transformer/harmonic neutralizer), Also GFI protected. 6. Work lights - magnifier, fluorescent and incandescent. Why incandescent? Floursecent are such great RF radiators and influence some of the gear I design/work on. 7. VTVM and DMM (I am old fashioned - Depending on what I am measuring, I like a meter that can withstand "hitting the wrong testpoint" 8. Test lead, jumper clips hanger - Use 1"x1" panduit with one side cut off for hanging test leads. 9. storage shelves. For components, I like 6-9" deep, for test gear, etc., I like 24" deep. 10. IC storage. I tend to keep lots of ICs around. I like to keep them in the plastic carrier strips, cut a hole in one end and hang them. 11. PC and inventory control. I know this sounds a bit overboard but...print out barcode and attach to every spare part before stored. Scan when used. Keeps an inventory in a DB of parts. You have no idea how many times it was my job in my dads store to look for a part that he 'knew' he had. Also, since I collect old computer 'stuff', It is nice to have an inventory list. 12. A separate section or separate bench for 'fabrication' that would contain drills, hammers, vise, etc. 13. One idea that I saw for a woodwork bench that I like is a number of verticle, slide out, pegboard pieces (about 2-3' high and 2' deep that sit under the bench. The are verticle, perhaps tilted back slightly, and can slide out. Organize tools, whatever. Keeps them from being piled in drawers and saves time hunting them. 14. Get service data in electronic format. Get a scanner and PC. I grew up with and still have tons of service manuals and data books. Using PDF versions of all this stuff saves time and space. If I could only get my 15 yo data books on DVDs I'd be soooo happy... 15. Antistaic mat on benchtop and also floor pad (or paint, depending on situation) 16. I have often found the need for a hefty heat gun (in lieu of a reflow furnace, and also to remove components in mass...lol) 17. A 'L' shaped bench works better for me than a long one. Also, ppl sometimes put pegboard on the back of benches to hang stuff..I don't like that because I don't like reaching across my work. Personal preference. 18. If you do serious work, I recommend mainstream test gear (HP, Tek, Fluke, etc.). You can trust what you measure. I know cost is an issue, which is why I'd get good used gear. For example, I'd get a good used Tek 465B, 475 or 485 over the newer DSOs. Most of the time, I don't need color, I don't need it connected to my network, etc. (But I do have one just in case...) I've build this bench many times in my head and even started it in my basement, but never time to finish. Good luck John Too_Many_Tools wrote: > With the holiday season here it is time to redo the workshop and the > workbench in particular. > > So, what suggestions do you have for setting up a good efficient > workspace for electronics? > > Here's an example that I found.... > > http://www.stevenjohnson.com/workbench.htm > > So what does your workspace, test bench and layout look like? > > Pictures and links would be great. > > What has worked for you?...what hasn't? > > Benches, racks, cabinets, tables, carts.... > > Any particular test equipment that you would recommend for or against? > > Thanks > > TMT > Article: 101039 of rec.radio.amateur.boatanchors From: Rich Grise Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> Date: Wed, 14 Dec 2005 17:19:13 GMT On Wed, 14 Dec 2005 13:29:50 +0000, Irv Finkleman wrote: > "Saandy , 4Z5KS" wrote: >> >> YOU CALL THIS A WORKBENCH!?!?!? >> my Goodness, if the mess on mine is les than 5 inches deep I feel I >> didn't do anything on that table! You know, I trained myself to >> identify location of things by the sound they make when they fall on >> something else when I throw it aside. If I were now to mop it up , I >> wouldn't be able to find anything! >> In any case I wish you good luck and I congratulate you for the >> initiative. >> Saandy 4Z5KS > > Reminds me of one guy who complained that he could never find the chuck > key for his drill, so begin buying them by the dozen -- that way, he said, > they normally last for a week or two! :-) > You're supposed to ty-wrap it to the cord, out at the plug end, so that you can't use it while the drill is plugged in. (Keeps your hands in one piece.) :-) Cheers! Rich Article: 101040 of rec.radio.amateur.boatanchors From: "Dale Parfitt" References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: <%FZnf.16500$OK6.7497@trnddc03> Date: Wed, 14 Dec 2005 18:39:55 GMT "Mike Andrews" wrote in message news:dnphu8$9au$5@puck.litech.org... > In rec.radio.amateur.boatanchors Dale Parfitt > wrote: > >> Here's a couple pix of my shop. For test equipment- stick with the >> knowns- >> HP/Agielnt, Tektronix etc. >> http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP >> http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP_3 > > In W4OP_2, what's the rightmost gadget? The one in the gray case, > with the meter(?), some gray knobs, and 2 toggle switches on the > front, and a black box on top of it? There's a printer behind it. > > Looks like you've got good taste in CAD tablets, too. > > -- > Mike Andrews, W5EGO > mikea@mikea.ath.cx > Tired old sysadmin Hi Mike, That's a General Radio 1236 meter I use for measuring sun and moon noise on my 1296MHz moonbounce station. It is a 30MHz IF amp with decibel meter. In the extended mode, I can easily resolve 0.05dB changes. Sun noise measurements are an excellent standard by which we judge system efficiency. On 10GHz I can see about a dB of moon noise- which is also handy to keep the dish trained on the moon. That pix is pretty dated at this point- the 746 has been replaced by a 756PRO II and the SSB transverter has been replaced by a DEMI 1296-->28 MHz transverter. Dale W4OP Article: 101041 of rec.radio.amateur.boatanchors From: "Dale Parfitt" Subject: F.A. ICOM IC-21A Message-ID: <7LZnf.16502$OK6.6216@trnddc03> Date: Wed, 14 Dec 2005 18:45:23 GMT It's hard for me to think of Icom as being a BA, but this qualifies, given its age. This was back when Icom made pretty radios. A 2M FM rig with both S meter and separate discriminator meter, beuatiful red/green/blue/white backlighting. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:L:LCA:US:31&item=5841063903 Tnx, Dale W4OP Article: 101042 of rec.radio.amateur.boatanchors From: "David G. Nagel" Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <439FAFDB.4ABD655A@earthlink.net> Message-ID: Date: Wed, 14 Dec 2005 23:14:40 GMT Michael A. Terrell wrote: > COLIN LAMB wrote: > >>The last time my bench was clean was over a decade ago - after I learned I >>had a very aggressive form of cancer. I reluctantly cleaned off the bench >>to save my wife from having to do it. >> >>But, through the miracles of drugs, the cancer went away. Now, my desks are >>all cluttered again. My wife fondly talks about how good life was when my >>desk was clean and I had sold much of my junk. I think she is kidding, but >>would not bet my life on it. >> >>When I clean an area, it is only temporary. >> >>At the constant prodding of my wife, I spend 3 months cleaning up the floor >>of my darkroom. I found things that had been missing for years. But, I >>could not clean up the desk, for it has all the little parts for which I do >>not have a place for. >> >>In the end, messiness is really just the product of someone who has so much >>order that he insists upon a place for each item before he puts it away. >> >>Colin K7FM > > > > A workbench is meant to be a living example of the moving hole > theory. ;-) > A clean work bench like a clear desk is a sign of a sick mind. ;^) Dave WD9BDZ Article: 101043 of rec.radio.amateur.boatanchors From: "Antonio Vernucci" References: <1134248919.573979.95640@g44g2000cwa.googlegroups.com> <439c3532$0$27608$4fafbaef@reader1.news.tin.it> Subject: Re: SS Rectifier conversion volts drop Date: Thu, 15 Dec 2005 01:09:36 +0100 Message-ID: <43a0b441$0$13252$4fafbaef@reader2.news.tin.it> > >Putting a series resistor would degrade the power supply regulation > >performance. This may or may not be important, depending on = application. >=20 > Yes, but it will degrade it to the same level which using the original > rectifier tube would. > --scott A vacuum rectifier shows a non linear behaviour, whereby the voltage = drop vs. current tends to saturate (until one exceeds the rectifier = rating). So, using a resistor to simulate the vacuum rectifier voltage = drop, would cause a worse regulation around the rectifier operating = point. But even disregarding the above consideration, putting a resistor = instead of a zener diode would mean losing a chance to improve things. 73 Tony I0JX Article: 101044 of rec.radio.amateur.boatanchors From: "Antonio Vernucci" References: <1134248919.573979.95640@g44g2000cwa.googlegroups.com> <439c3532$0$27608$4fafbaef@reader1.news.tin.it> <439c67f0$0$13257$4fafbaef@reader2.news.tin.it> Subject: Re: SS Rectifier conversion volts drop Date: Thu, 15 Dec 2005 01:44:42 +0100 Message-ID: <43a0bc7a$0$13266$4fafbaef@reader2.news.tin.it> > Here is an example. Let us assume we have 100 volt primary and 100 = volt=20 > secondary, and that the normal rectifier has a 10 volt voltage drop. = We=20 > replace the tube with 2 series diodes, which have a 1 volt total drop = and=20 > then add 9 volts of zeners. That gives us a 10 volt drop, equal to = the=20 > tube. Now, assume there is a 10 volt drop in primary line voltage.=20 > Secondary voltage is 90, less 10 volts, which is 80 volts. The output = > voltage has dropped by 11%, while the input voltage has dropped 10%. = If we=20 > still had the original tube (or a diode and resistor), then the 10 = volt=20 > primary drop will result in 90 volts on the secondary - but the = voltage drop=20 > will be fairly linear across the tube (and resistor), so will only be=20 > probably 9 volts. Resulting voltage out of the power supply is 81 = volts=20 > rather than the 80 volts using the zener diode. In that case, primary = > voltage drops 10% and seconddary voltage drops 10%. Contrary to regulated power supplies, the regulation performance of a = non-regulated power supply is defined with regard to load variations, = not to mains variations. As a matter of fact a non-regulated supply is = inherently unable to tolerate mains variation, whilst it can tolerate = load variations if properly designed (think of input-choke power = supplies). Regulation (against load variations) greatly benefits from = having a series zener in place of a series resistor. It is however true that, for a mains voltage drop, using a zener diode = will cause an extra small output voltage drop. I use a series zener diode in my car to drop the battery voltage down to = about 9V, as required by my VHF handy-talkie. If I would have used a = resistor instead, voltage would significantly vary from reception to = transmission. Clearly there is no need at all to use an expensive power zener diode, = as a plain power transistor with a small zener connected between = collector and base does precisely the same job. 73 Tony, I0JX Article: 101045 of rec.radio.amateur.boatanchors From: "Dale Parfitt" References: <7LZnf.16502$OK6.6216@trnddc03> Subject: Re: F.A. ICOM IC-21A Message-ID: <0Y3of.891$Jr1.104@trnddc01> Date: Thu, 15 Dec 2005 01:48:44 GMT "gb" wrote in message news:S6idnULIdYqy8D3eRVn-qQ@comcast.com... > "Dale Parfitt" wrote in message > news:7LZnf.16502$OK6.6216@trnddc03... >> It's hard for me to think of Icom as being a BA, but this qualifies, >> given its age. This was back when Icom made pretty radios. A 2M FM rig >> with both S meter and separate discriminator meter, beuatiful >> red/green/blue/white backlighting. >> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ssPageName=ADME:L:LCA:US:31&item=5841063903 >> >> Tnx, >> >> Dale W4OP > Yes, I saw this auction. Sad, I remember when it and the Kenwood R-599 > were new !! > > Greg > w9gb >And many more Greg. The sad part about today's rigs is that they will die a >quick death as manufacturers deplete their supplies of custom IC's and >preprogrammed memories. My keepr IC-21A gets daily use- fabulous audio and almost as much fun to look at as the 2B/R-4C etc. Dale W4OP Article: 101046 of rec.radio.amateur.boatanchors From: Rich Grise Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> <43A0AA0B.F1EB2614@earthlink.net> Date: Thu, 15 Dec 2005 01:52:06 GMT On Wed, 14 Dec 2005 23:26:10 +0000, Michael A. Terrell wrote: > Rich Grise wrote: >> >> You're supposed to ty-wrap it to the cord, out at the plug end, so that >> you can't use it while the drill is plugged in. (Keeps your hands in >> one piece.) :-) > > That doesn't work on my drill press. Its chained to the wiring cover > on the motor and only has a couple inches of slack to keep it out of the > way. Hmm, then maybe you need a little bungee for it. :-) Hey! I just had an invention! The chuck key plugs into a dead-man switch socket! It's right there on the drill press, and you pull it out, it kills the power, you use it, and you have to poke the chuck key back into its socket or the drill press won't turn on! ;-) Nah, they'd defeat it with a nail or something. Good Luck! Rich Article: 101047 of rec.radio.amateur.boatanchors From: "al goss" Subject: RE: Lafayette HE-35 Message-ID: <3z4of.1355$EE4.1286@news02.roc.ny> Date: Thu, 15 Dec 2005 02:30:23 GMT Can anyone assist with pin-out info: 11 pin socket tnx AL Article: 101048 of rec.radio.amateur.boatanchors From: Ron in Radio Heaven Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> <43A0AA0B.F1EB2614@earthlink.net> Message-ID: Date: Thu, 15 Dec 2005 02:56:16 GMT John Popelish wrote: > Rich Grise wrote: >> Hey! I just had an invention! The chuck key plugs into a dead-man switch >> socket! Not new, I installed one of those on the drill press where I used to work, more than 20 years ago. Guys kept leaving the key stuck in the chuck and then turning to motor on... Not good. Ron Article: 101049 of rec.radio.amateur.boatanchors From: Bob Miller Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: <55u2q19ffta2asfrgv6p06gfdj56a9m24k@4ax.com> References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> Date: Thu, 15 Dec 2005 14:11:18 GMT On Wed, 14 Dec 2005 01:10:56 GMT, "Dale Parfitt" wrote: > > >Here's a couple pix of my shop. For test equipment- stick with the knowns- >HP/Agielnt, Tektronix etc. >http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP >http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP_3 > >W4OP >> > Every year or so QST runs a page of two of photos featuring the country's messiest ham shacks. Dale, I don't think you would qualify. One could serve turkey dinner on that workbench of yours... bob k5qwg Article: 101050 of rec.radio.amateur.boatanchors From: "Dale Parfitt" References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <55u2q19ffta2asfrgv6p06gfdj56a9m24k@4ax.com> Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: Date: Thu, 15 Dec 2005 14:22:39 GMT "Bob Miller" wrote in message news:55u2q19ffta2asfrgv6p06gfdj56a9m24k@4ax.com... > On Wed, 14 Dec 2005 01:10:56 GMT, "Dale Parfitt" > wrote: > >> > >> >>Here's a couple pix of my shop. For test equipment- stick with the knowns- >>HP/Agielnt, Tektronix etc. >>http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP >>http://www.w4dex.com/gallery/Dale-Parfitt/Dale_Parfitt_W4OP_3 >> >>W4OP >>> >> > > Every year or so QST runs a page of two of photos featuring the > country's messiest ham shacks. Dale, I don't think you would qualify. > One could serve turkey dinner on that workbench of yours... > > bob > k5qwg > Hi Bob, Guilty as charged. A lot of work gets done on it though. Last year an 8 band HF RX with all the bells and whistles: http://www.parelectronics.com/pics/w7zoi13jpg.jpg http://www.parelectronics.com/pics/w7zoi14.jpg http://www.parelectronics.com/pics/w7zoi15.jpg http://www.parelectronics.com/pics/W7ZOI11%20copy.jpg A total rebuild of an SX-88- right down to new front panel silk screening/ 2 tube water cooled amp for 1296/ Homebrew Regen: http://parelectronics.com/pics/regen2.jpg Homebrew (KE9OA design) DDS RX: http://www.parelectronics.com/pics_old/old/Pg150.jpg Latest is an air cooled 400W solid state 1296 MHz amp- no WEB pix yet, but the 90Amp P.S. has me as worried as HV. Dale W4OP Article: 101051 of rec.radio.amateur.boatanchors From: kludge@panix.com (Scott Dorsey) Subject: Re: SS Rectifier conversion volts drop Date: 15 Dec 2005 13:50:53 -0500 Message-ID: References: <1134248919.573979.95640@g44g2000cwa.googlegroups.com> <43a0b441$0$13252$4fafbaef@reader2.news.tin.it> Antonio Vernucci wrote: > >A vacuum rectifier shows a non linear behaviour, whereby the voltage = >drop vs. current tends to saturate (until one exceeds the rectifier = >rating). So, using a resistor to simulate the vacuum rectifier voltage = >drop, would cause a worse regulation around the rectifier operating = >point. Ahh! That makes perfect sense! I had not thought about that... I guess I always just thought about the diode conductance as being a fixed value. Hmm.... I just got out the old RCA Receiving Tube handbook and the only rectifier I can find with actual curves is the 5Y3... the curve is pretty flat, but you're right that it isn't linear. No knee on it, though. Is this typical? Are the gas-filled types significantly different (other than the turn-on discontinuity)? >But even disregarding the above consideration, putting a resistor = >instead of a zener diode would mean losing a chance to improve things. True. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." Article: 101052 of rec.radio.amateur.boatanchors From: "Joel Kolstad" Subject: Re: What Does Your Electronics Workshop Look Like? Date: Thu, 15 Dec 2005 11:48:11 -0800 Message-ID: <11q3i3qrhb08g2d@corp.supernews.com> References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> <43A0AA0B.F1EB2614@earthlink.net> "Rich Grise" wrote in message news:pan.2005.12.15.19.27.21.337730@example.net... > Then again, people pay for explosives inside their car in the name of > "safety"; why not add fifteen or twenty bucks to the cost of a power > tool if you can tout it as a "safety" feature? ;-P Because people are convinced that air bags are there to protect them when OTHERS crash into them, whereas few people are willing to pay for extra protective measures to protect them from THEMSELVES! :-) Article: 101053 of rec.radio.amateur.boatanchors Message-ID: <43A1CCE3.FCBFCB30@earthlink.net> From: "Michael A. Terrell" Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> <43A0AA0B.F1EB2614@earthlink.net> Date: Thu, 15 Dec 2005 20:07:07 GMT Rich Grise wrote: > > On Wed, 14 Dec 2005 23:26:10 +0000, Michael A. Terrell wrote: > > > Rich Grise wrote: > >> > >> You're supposed to ty-wrap it to the cord, out at the plug end, so that > >> you can't use it while the drill is plugged in. (Keeps your hands in > >> one piece.) :-) > > > > That doesn't work on my drill press. Its chained to the wiring cover > > on the motor and only has a couple inches of slack to keep it out of the > > way. > > Hmm, then maybe you need a little bungee for it. :-) I prefer the small chain. If someone turns the drill press on with it in the chuck there is a weak link that will snap and not whip the chain all over the place. > Hey! I just had an invention! The chuck key plugs into a dead-man switch > socket! It's right there on the drill press, and you pull it out, it kills > the power, you use it, and you have to poke the chuck key back into its > socket or the drill press won't turn on! ;-) > > Nah, they'd defeat it with a nail or something. > > Good Luck! > Rich I've got a scrap bench top drill press that was built with a switch lick that. Its the second one my dad has killed in the last seven years. You couldn't flip the power switch on the first one, till the chuck key was wedged into the hole. -- ? Michael A. Terrell Central Florida Article: 101054 of rec.radio.amateur.boatanchors Date: Thu, 15 Dec 2005 21:50:08 +0100 From: Zak Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> <43A0AA0B.F1EB2614@earthlink.net> Message-ID: <43a1d681$0$10823$6c4159fb@news.tweaknews.nl> Rich Grise wrote: > Not much industry experience, huh? ;-) I only mention it because almost > every major industrial-grade tool I've seen has "ON" and "OFF" buttons, > and a latching contactor. If power goes down, or the "OFF" button is > pressed, or the "EMERGENCY STOP" button is pressed, the machine turns > off, and doesn't restart when you reset the breaker - you have to > overtly press the green "ON" (or sometimes "START") button. This gives > you a chance to clear the scrap out of the machine before you reset > and restart whatever process got stopped in the middle. > > Probably cost-prohibitive for a consumer-level garage or basement > drill press. Well, the one I got at the supermarket for some 40 euros has one. They're actually simple devices: a switch where the latch is a tiny coil. Not expensive at all, if made in sufficient volume. Thomas Article: 101055 of rec.radio.amateur.boatanchors From: Ignoramus8558 Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> <43A0AA0B.F1EB2614@earthlink.net> Message-ID: Date: Thu, 15 Dec 2005 21:00:20 GMT On Thu, 15 Dec 2005 19:23:14 GMT, Rich Grise wrote: > > Probably cost-prohibitive for a consumer-level garage or basement > drill press. that stuff is pretty cheap these days. Nice ON/OFF buttons are about $13 at surpluscenter.com, and contactors cost next to nothing on ebay. i Article: 101056 of rec.radio.amateur.boatanchors From: Al Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> <43A0AA0B.F1EB2614@earthlink.net> <11q3i3qrhb08g2d@corp.supernews.com> Message-ID: Date: Thu, 15 Dec 2005 21:11:21 GMT In article <11q3i3qrhb08g2d@corp.supernews.com>, "Joel Kolstad" wrote: > "Rich Grise" wrote in message > news:pan.2005.12.15.19.27.21.337730@example.net... > > Then again, people pay for explosives inside their car in the name of > > "safety"; why not add fifteen or twenty bucks to the cost of a power > > tool if you can tout it as a "safety" feature? ;-P > > Because people are convinced that air bags are there to protect them when > OTHERS crash into them, whereas few people are willing to pay for extra > protective measures to protect them from THEMSELVES! :-) > > A little off topic, but air bags don't protect anything. People have air bags and now think they can drive more aggressively as they are "protected." Four-wheel drive also makes people drive in conditions they normally would not; but four-wheel stop is the same for both. Al Article: 101057 of rec.radio.amateur.boatanchors From: "Antonio Vernucci" References: <1134248919.573979.95640@g44g2000cwa.googlegroups.com> <43a0b441$0$13252$4fafbaef@reader2.news.tin.it> Subject: Re: SS Rectifier conversion volts drop Date: Thu, 15 Dec 2005 22:17:16 +0100 Message-ID: <43a1dd5c$0$27606$4fafbaef@reader1.news.tin.it> > Hmm.... I just got out the old RCA Receiving Tube handbook and the = only > rectifier I can find with actual curves is the 5Y3... the curve is = pretty > flat, but you're right that it isn't linear. No knee on it, though. >=20 > Is this typical? Are the gas-filled types significantly different = (other > than the turn-on discontinuity)? All vacuum rectifiers show a similar behaviour, corresponding to the = so-called 2/3 law. The I-V curve is typically S-Shaped. At low currents, = voltage drop grows with current. For higher currents, voltage drop does = not grow too much with current.. If current exceeds tube ratings, = voltage drop again strongly grows with current. =20 I could not find the curve for a mercury rectifier. An old RCA tube = handbook reports: - for model 83 (mercury rectifier): voltage drop: 15V - for model 5U4 (vacuum rectifier): voltage drop: 44V at 225mA, 50V at = 275mA, 54V at 300mA 73 Tony, I0JX Article: 101058 of rec.radio.amateur.boatanchors From: "Heytubeguy" Subject: FA:JENNINGS FIXED GLASS CAPS 20KV Message-ID: Date: Thu, 15 Dec 2005 22:29:47 GMT Jennings fixed vac caps (glass) rated at 20kv, 100PF and 140PF + a few more items too; see at http://search.ebay.com/_W0QQfgtpZ1QQfrppZ25QQsassZheytubeguy tnx Merry Christmas, Happy New Year, Happy Hanukkak, 73 heytubeguy Article: 101059 of rec.radio.amateur.boatanchors From: "whertel" Subject: AN/GRR-5 (R-174) Vibrator Message-ID: Date: Thu, 15 Dec 2005 16:52:53 -0600 I recently acquired an AN/GRR-5 system. The Filament Vibrator, E102 on the schematic, finally quit. Taking it apart revealed that the metallic vibrating plate had broken across. According to the manual, it is a 4-pin unit, OAK P/N 6556. The one in the power supply is a Cornell-Dubilier Type 8360C-2. Anyone know of a souce for them, or is there a solid state replacement available. Any leads greatly appreciated. Thanks, Wayne Article: 101060 of rec.radio.amateur.boatanchors From: kludge@panix.com (Scott Dorsey) Subject: Re: AN/GRR-5 (R-174) Vibrator Date: 15 Dec 2005 19:27:01 -0500 Message-ID: References: In article , whertel wrote: >I recently acquired an AN/GRR-5 system. The Filament Vibrator, E102 on the >schematic, finally quit. Taking it apart revealed that the metallic >vibrating plate had broken across. According to the manual, it is a 4-pin >unit, OAK P/N 6556. The one in the power supply is a Cornell-Dubilier Type >8360C-2. Anyone know of a souce for them, or is there a solid state >replacement available. Any leads greatly appreciated. Try Antique Electronics Supply. They have various vibrators available new, as well as some of the solid state replacements. They may well not have an exact replacement but they may well sell something adaptable. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." Article: 101061 of rec.radio.amateur.boatanchors From: "Tom" References: <9buhf.7283$id.6018@trnddc04> Subject: Re: Astro-net from the 60s Message-ID: Date: Fri, 16 Dec 2005 02:15:15 GMT Sorry, out of town for a few weeks. The Astronet guys observed that the flashes were conicident both in time and location on the moon when observed from various locations up and down the west coast. Conclusion was that the flashes were meteor impacts on the lunar surface. I think this was later confirmed independently. One of the guys had an interesting 80m setup. Separate Tx and Rx, and 1kw amplifier. He had an separate Rx antenna, an IF output jack on the Rx, and an electronic TR switch on the Rx. He would connect an oscilloscope to the IF output of the Rx, and hit a few dits on the keyer. You could see the transmit waveform as full-screen signal, then nothing as the Rx recovered back into operation after a few tens of microseconds. Then you could see the backscatter pop up on the receiver scope. The keying rate had to be fast enough and completely synchronous to see it on the non-storage scopes of the day. But he was able to measure the time to receive the echos back >from the ionosphere and pretty much could predict whether he should bother operating the net that night (with reasonable accuracy). The echos were somewhat smeared out, so the return signal was undergoing a somewhat distributed reflection process. I don't recall if the backscatter was normally TX->Ionosphere->Rx or if it was Tx->Ionosphere->Ground->Ionsphere->Rx My recollection is that he had seen both cases. -- Tom "Mike Andrews" wrote in message news:dmd0m2$3m4$1@puck.litech.org... > And that conclusion was? > > Gonna just leave us haning like that? > > In rec.radio.amateur.boatanchors Tom wrote: >> You bet. They started out when some of the guys noticed brief >> point-source >> bright flashes >> on the lunar surface. Used 80m to time whether the flashes were >> synchronized >> across >> large observation distances. If they were not, then the flashes were >> likely >> meteors in >> the earth's atmosphere; if they were synchronized, then the probablility >> that they were >> associated with an event on the lunar surface was pretty high. > >> The guys had scopes setup in the backyard and 100-foot >> headphone/microphone >> cables >> going back to the radio so they could observe and talk on the radio >> simultaneously. > >> They did reach a conclusion about the flashes.... > >> "Jeffrey Herman" wrote in message >> news:dm3gng$hrl$1@news.hawaii.edu... >>> "Bob Sherin, W4ASX" wrote in message >>>> To be honest, I never felt comfortable on 75 meters, nor did I feel >>>> that I fit in for the most part. There were groups, however, in which >>>> I enjoyed participating, >>> >>> Anyone remember the Astro-Net on 3885 kc from the 1960s? It was composed >>> of group of amateur astronomers who nightly trained their telescopes on >>> a >>> particular celestial object and would then have round-table comments >>> about that object. It was fascinating to eavesdrop on that net. >>> >>> 73, Jeff KH6O >>> -- >>> Chief Petty Officer, U.S. Coast Guard >>> Mathematics Lecturer, University of Hawaii System > > -- > Mike Andrews, W5EGO > mikea@mikea.ath.cx > Tired old sysadmin Article: 101062 of rec.radio.amateur.boatanchors From: "Steve" Subject: IM-36A/URM-6 Field Strngth Meter:need schematics Date: Thu, 15 Dec 2005 18:28:42 -0800 Message-ID: <43a22633$0$95982$742ec2ed@news.sonic.net> I've had this thing for quite a while. It appears to be a very nice VLF (14-500KC) receiver. Hopefully someone out there has schematics so I can get it fired up. I could also use any info about the external power supply (which I don't have). Yes, I've checked BAMA and done a Google search. No luck there. Steve Article: 101064 of rec.radio.amateur.boatanchors From: Korbin Dallas Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134562449.096696.326280@o13g2000cwo.googlegroups.com> <43A01E55.4C1DD7C3@shaw.ca> Date: Fri, 16 Dec 2005 21:51:05 GMT On Wed, 14 Dec 2005 17:19:13 +0000, Rich Grise wrote: > On Wed, 14 Dec 2005 13:29:50 +0000, Irv Finkleman wrote: > >> "Saandy , 4Z5KS" wrote: >>> >>> YOU CALL THIS A WORKBENCH!?!?!? >>> my Goodness, if the mess on mine is les than 5 inches deep I feel I >>> didn't do anything on that table! You know, I trained myself to >>> identify location of things by the sound they make when they fall on >>> something else when I throw it aside. If I were now to mop it up , I >>> wouldn't be able to find anything! >>> In any case I wish you good luck and I congratulate you for the >>> initiative. >>> Saandy 4Z5KS >> >> Reminds me of one guy who complained that he could never find the chuck >> key for his drill, so begin buying them by the dozen -- that way, he said, >> they normally last for a week or two! :-) >> > > You're supposed to ty-wrap it to the cord, out at the plug end, so that > you can't use it while the drill is plugged in. (Keeps your hands in > one piece.) :-) > > Cheers! > Rich A Clean Workbench is the sign of a person who is not doing anything... -- Korbin Dallas The name was changed to protect the guilty. Article: 101065 of rec.radio.amateur.boatanchors Subject: Re: For all you URM-25D fans out there From: "Jerry McCarty" References: Message-ID: Date: Fri, 16 Dec 2005 22:18:36 GMT On 16-Dec-2005, K3HVG wrote: > I just order a few, too.. but the price was $1.79??? Up already? Still > OK if they're the real McCoy. The page I ordered from had two types listed: a Chicago Miniature 323 for $1.79 and a Micro Lamp 323 for $1.19. I took a chance on the Micro Lamp. Genuine Chicago Miniatures arrived. Agreed. Since the general concensus is that these things have vanished off the face of the earth, it seemed like a pretty good deal. Article: 101066 of rec.radio.amateur.boatanchors From: ve3ab@personainternet.com (Earl Andrews) Subject: TUBES NEEDED..for sx130 restoration..tube trade possible Date: Sat, 17 Dec 2005 00:50:41 GMT Message-ID: <43a35ffe.351549503@news.personainternet.com> Im in need of 6DC6 (this may be tough to find) also..6BE6,6GW8,6AL5 in order to get my sx130 working. I got in from my uncle (SK) and some of the tubes are missing. Otherwise looks good. - I have a tube tester and could perhaps reciprocate by trading some good tubes back the other way or ..I have lots of parts ect and maybe swap..or just pay cash. tnx for reading..Im about 2 hours drive west of Sault Ste Marie Michigan. Earl VE3AB Article: 101067 of rec.radio.amateur.boatanchors Subject: Re: TUBES NEEDED..for sx130 restoration..tube trade possible From: "Jerry McCarty" References: <43a35ffe.351549503@news.personainternet.com> Message-ID: Date: Sat, 17 Dec 2005 12:35:50 GMT On 17-Dec-2005, K3HVG wrote: > Earl, All of these tubes are commonly available from numerous sources. FWIW, the sources I usually use: http://www.radiotubesupply.com Even though Roy is in Ohio, he accepts Michigan dollars. http://home.att.net/~esrc/esrcmain.html http://www.thetubecenter.com/ http://www.vacuumtubesinc.com/ and of course https://secure.tubesandmore.com/ but generally their prices are higher, unless one of their sale items happens to match what you need, like the 6688's I picked up for $2.50 each. There are many more. Article: 101068 of rec.radio.amateur.boatanchors From: kludge@panix.com (Scott Dorsey) Subject: Re: J.L.A. McLaughlin Signal Splitter -- sideband convertor? Date: 17 Dec 2005 16:29:59 -0500 Message-ID: References: <75adnSNB4vDxyDnenZ2dnUVZ_sGdnZ2d@comcast.com> Steve2 wrote: > >I have a JLA McLaughlin "signal splitter" model number MCL 10 VBX. I would >guess it's from the 1950's or so, and I'm trying figure out what it is and >maybe get some history on it. > >It was used in a set up with a R-390A, R-389, and a Panoramic Radio >Panalyzor SB-8b. My guess is that it's a sideband adaptor since it had an >input from the IF of the receivers and has an "upper" and "lower" switch. >It's in a rackmount chassis with a black crinkle paint face plate. It is indeed a sideband adaptor, and it will work with any receiver that has a 455 MC IF output. I've been looking for one for years. I'd guess it was from the early sixties. There were a lot of similar devices that became available as commercial SSB took off. As I recall, this is not one of the super-high-grade ones with the 7680 sheet-beam tube, but the IF filtering on the 390A is good enough that it shouldn't matter much. --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." Article: 101069 of rec.radio.amateur.boatanchors From: "o" Subject: ts130 problems Date: Sun, 18 Dec 2005 00:23:44 -0800 Message-ID: Hi all, Anyone have a ts130 with intermitant/no display problems. Looked up mods.dk and found a supposed cure but my rig didnt share the same problem....if anyone could shed light on this it would be appreciated. Tnx in advance de AA9YP Article: 101070 of rec.radio.amateur.boatanchors From: "David J Windisch" Subject: Trade Message-ID: <3Wepf.183857$Hs.71425@tornado.ohiordc.rr.com> Date: Sun, 18 Dec 2005 15:06:39 GMT Trade Drake L4-B in excellent working order for HyGain TH11DX/HamM rotator in same good order. Antennas can be shipped in cardboard concrete-form tubes :o) 73, DTradeave, N3HE 513-674-7202 Article: 101071 of rec.radio.amateur.boatanchors From: "Jim L." Subject: SBE 34 Message-ID: Date: Sun, 18 Dec 2005 16:37:35 GMT Greetings- Is there a cure for the slipping dial problem on this transceiver, other than replacement? Tnx, Jim. Article: 101072 of rec.radio.amateur.boatanchors From: "John Reynolds" Subject: WTB. Accessory components for SCR.399 Date: Sun, 18 Dec 2005 20:42:05 -0000 Message-ID: I am trying to complete an SCR.399 and need the Tool Box TE.48 and the portable Typewriter, will greatly appreciate any help. Johnl Article: 101073 of rec.radio.amateur.boatanchors Message-ID: <43A5D288.8030009@nospam.com> From: Fred Bloggs Subject: Re: What Does Your Electronics Workshop Look Like? References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134782992.159432.296340@g44g2000cwa.googlegroups.com> Date: Sun, 18 Dec 2005 21:20:13 GMT > > How much and what type of storage do you have? I take what they give me- but I prefer those big roll around multi-drawer jobs with each drawer user partitioned. > > How are the workbenches laid out most efficiently? L shaped? U shaped? > T shaped? Makes no difference- all lined up against one wall works well, the mobile stuff needs to go in a rack anyway- roll the rack to where it's needed, some people prefer carts. > > How much stationary and how much mobile? Every thing goes mobile at one point or any other. Stationary just means it will be something to make mobile later. > > What do you like for lighting? It can only be flourescent- and built in to the bench in addition to normal room lighting works best. > > Has anyone built power busses into your bench? If so, what was it? A real bench has bussed line voltage with *LOTS* of receptacles. > > How about floor coverings? Ever drop a tiny screw or surface mount part > on the floor and spend hours looking for it? It always has to be thick insulating mats rated for 20KV, any IC dropped on the floor is considered lost and not used, a screw is a different matter, you shouldn't have to hunt for a hard to find screw, you should be able to cut to length any replacement. Better make space for lots of data books and a computer, fire extinguisher, metal working machines, first aid kit, smoke alarm, set-aside projects, file cabinets, and nice-to-get-to-later junk you will accumulate. And make it so that every damned thing can be locked up- especially the door to the lab, and more locks on all the storage cabintes once inside, you may consider touch pad enable of all the room receptacles, and installing an alarm. Article: 101074 of rec.radio.amateur.boatanchors From: Jim Thompson Subject: Re: What Does Your Electronics Workshop Look Like? Message-ID: References: <1134520239.071671.96720@g44g2000cwa.googlegroups.com> <1134782992.159432.296340@g44g2000cwa.googlegroups.com> <43A5D288.8030009@nospam.com> Date: Sun, 18 Dec 2005 14:26:33 -0700 On Sun, 18 Dec 2005 21:20:13 GMT, Fred Bloggs wrote: [snip] >you may consider touch pad enable of all the room >receptacles, and installing an alarm. When I was involved in off-line switchers I had a "panic button" installed... one side-of-the-hand punch dropped the whole lab. Plus a rule of no work unless a minimum of two people were there. ...Jim Thompson -- | James E.Thompson, P.E. | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona Voice:(480)460-2350 | | | E-mail Address at Website Fax:(480)460-2142 | Brass Rat | | http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.