20090327.ba v04_n257.bam.20090327 >From ???@??? Fri Mar 27 19:49:37 2009 -0500 Date: Fri, 27 Mar 2009 18:48:57 CST From: Old Tube Radios To: Old Tube Radios Subject: BOATANCHORS digest 4257 Message-Id: <20090328004900.4443910B029@srvr1.theporch.com> BOATANCHORS Digest 4257 Topics covered in this issue include: 1) Re: Inside a 6L6. by Richard Loken 2) Re: Inside a 6L6. by "RICHARD GEORGE" 3) Re: Inside a 6L6. by john 4) Re: Inside a 6L6. by "Arden Allen" 5) Re: Inside a 6L6. by "Arden Allen" 6) Re: Inside a 6L6. by Richard Loken 7) Re: Inside a 6L6. by Garey Barrell 8) HP 5245L plugins? by Charles Morris 9) RCA HB-3 available for download by "k4pf@juno.com" 10) Re: BA TV sighting--other way 'round! - tonight by Deane McIntyre 11) Big HB rig by john 12) Re: Big HB rig by W0EOM@aol.com 13) Re: Big HB rig by John Dilks K2TQN 14) Re: Inside a 6L6. by wb3fau@att.net 15) LOGSA? by Charles Morris 16) Cleaning Up A Eimac 5CX1500A by KA6UUP 17) Re Eimac by "PHIL" 18) Re: LOGSA? by Ben Hall 19) Re: LOGSA? by WA5CAB@cs.com 20) Manual needed. by "RICHARD GEORGE" 21) Re: Manual needed. by Garey Barrell 22) Re: Manual needed. by "Arden Allen" 23) WANTED: 100 pf @ 4 KV Variable by RICHARD SOLOMON 24) National CRM scope questions by Rich Post 25) Old tube car radio. by "Brian Goldsmith" 26) Hotline Telephones by Jerry Proc ---------------------------------------------------------------------- Date: Thu, 19 Mar 2009 10:57:50 -0700 From: Richard Loken Subject: Re: Inside a 6L6. Cc: Old Tube Radios Message-id: MIME-version: 1.0 Content-type: TEXT/PLAIN; charset=US-ASCII To: Old Tube Radios On Thu, 19 Mar 2009, Garey Barrell wrote: > Nicely done video dissecting a 6L6. > http://tinyurl.com/dzlses So the golden ears guitar crowd require gold plated control grids. I wonder how Jimmy Henrix and Eric Clapton got by on that non gold plated crap put out by RCA and Mullard back in the 60's. -- Richard Loken VE6BSV, Unix System Administrator : "Anybody can be a father Athabasca University : but you have to earn Athabasca, Alberta Canada : the title of 'daddy'" ** richardlo@admin.athabascau.ca ** : - Lynn Johnston ------------------------------ Message-ID: From: "RICHARD GEORGE" To: Old Tube Radios Subject: Re: Inside a 6L6. Date: Thu, 19 Mar 2009 10:36:00 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit And the golden grids improve tone? Isn't the sign of a good amplifier is that reproduces exactly what is input. If it improves "tone" is that not distorsion? Excuse the spelling. K6KWQ Dick Amps by "MORE POWER" > > So the golden ears guitar crowd require gold plated control grids. I > wonder > how Jimmy Henrix and Eric Clapton got by on that non gold plated crap put > out by RCA and Mullard back in the 60's. > > -- > Richard Loken VE6BSV, Unix System Administrator : "Anybody can be a > father > Athabasca University : but you have to earn > Athabasca, Alberta Canada : the title of > 'daddy'" > ** richardlo@admin.athabascau.ca ** : - Lynn Johnston > > ------------------------------ Message-Id: <6.2.1.2.2.20090319173937.044c4590@pop-server.nc.rr.com> Date: Thu, 19 Mar 2009 17:40:03 -0400 To: Old Tube Radios From: john Subject: Re: Inside a 6L6. Cc: Old Tube Radios Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed At 01:57 PM 3/19/2009, Richard Loken wrote: >So the golden ears guitar crowd require gold plated control grids. I wonder >how Jimmy Henrix and Eric Clapton got by on that non gold plated crap put >out by RCA and Mullard back in the 60's. Turning it up to volume level 11 seemed to do the trick! John K5MO ------------------------------ Message-ID: <003801c9a8e7$7be2e970$429e480c@KB6NAX> From: "Arden Allen" To: Old Tube Radios Subject: Re: Inside a 6L6. Date: Thu, 19 Mar 2009 15:58:23 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit > .......If it improves "tone" is that not > distor[t]ion? Bingo! That's tone improving distortion, i.e., fidelity reducing distortion. One man's tone is another man's groan ;-) Arden Allen KB6NAX Adopt a shelter dog, save an innocent life, and make a friend forever =:-) ------------------------------ Message-ID: <003901c9a8e7$7ee37f40$429e480c@KB6NAX> From: "Arden Allen" To: Old Tube Radios Cc: "Old Tube Radios" Subject: Re: Inside a 6L6. Date: Thu, 19 Mar 2009 16:06:38 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I didn't bother to look at the video. Gold plated grids increase a tube's operating hours before suffering the effects of grid emission which upsets bias. Gold is a noble metal and resists chemical bonding with what the cathode throws out. Arden Allen KB6NAX Adopt a shelter dog, save an innocent life, and make a friend forever =:-) ------------------------------ Date: Thu, 19 Mar 2009 17:17:55 -0700 From: Richard Loken Subject: Re: Inside a 6L6. To: Old Tube Radios Message-id: MIME-version: 1.0 Content-type: TEXT/PLAIN; charset=US-ASCII On Thu, 19 Mar 2009, Arden Allen wrote: > I didn't bother to look at the video. Gold plated grids increase a tube's > operating hours before suffering the effects of grid emission which upsets > bias. Gold is a noble metal and resists chemical bonding with what the > cathode throws out. How common was gold plating the control grid back when tubes were king? -- Richard Loken VE6BSV, Unix System Administrator : "Anybody can be a father Athabasca University : but you have to earn Athabasca, Alberta Canada : the title of 'daddy'" ** richardlo@admin.athabascau.ca ** : - Lynn Johnston ------------------------------ Message-ID: <49C2FE3D.7030405@mindspring.com> Date: Thu, 19 Mar 2009 22:23:57 -0400 From: Garey Barrell MIME-Version: 1.0 To: Old Tube Radios Subject: Re: Inside a 6L6. Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit The gold-plated grids have nothing to do with the quality of the video. Arden Allen wrote: > I didn't bother to look at the video. Gold plated grids increase a tube's > operating hours before suffering the effects of grid emission which upsets > bias. Gold is a noble metal and resists chemical bonding with what the > cathode throws out. > > ------------------------------ From: Charles Morris To: Old Tube Radios Subject: HP 5245L plugins? Date: Sat, 21 Mar 2009 16:45:53 -0500 Message-ID: <2nnas49i684n1cl6vuu69a843emlhkbmim@4ax.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable A couple of years ago I picked up an HP 5245L counter at Dayton cheap, discovered (as expected) that it didn't work (would not count at all, although the Nixies displayed all 0's). Now that I have a lot of free time I finally got around to looking at it. Turned out to be an easy fix. One of the power supply electrolytics (FP can) had failed completely open, so that rail was very strange looking on the scope. All the others were fine... go figure. Removing it looked like a PITA so I bridged it with a physically smaller "modern" cap of the appropriate value, under the chassis. Still would only count intermittently. Turned out the reset button had been pushed so many times it was falling apart behind the panel, and shorting. Replaced the pushbutton, lubed the fan bearings (still a typhoon though) and everything is working fine. Not bad for $20 or whatever I paid for it... I always liked those orange Nixies, too. So now I am looking for a plug-in so I can directly measure the freq on my 2m HT since the base counter is limited to 50 MHz. Anyone got one? (or the blank dust cover)? thanks Charles WB3JOK/0 ------------------------------ Mime-Version: 1.0 From: "k4pf@juno.com" Date: Sun, 22 Mar 2009 20:17:17 GMT To: Old Tube Radios Subject: RCA HB-3 available for download Message-Id: <20090322.161717.18589.0@webmail06.vgs.untd.com> Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Content-Type: text/plain; charset=ISO-8859-1 Hi, Gang This is the big RCA handbook of receiving and transmitting tube types, loaded with characteristic curves. Total pdf size 214 MB: http://www.filefactory.com/file/af68ha4/n/RCA_Electron_Tube_Handbook_HB-= 3_part1_rar http://www.filefactory.com/file/af68h5b/n/RCA_Electron_Tube_Handbook_HB-= 3_part2_rar http://www.filefactory.com/file/af68h87/n/RCA_Electron_Tube_Handbook_HB-= 3_part3_rar 73, Ed Knobloch ------------------------------ Mime-Version: 1.0 (Apple Message framework v753.1) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <32B7FA8D-FDD8-4AC4-A9E0-CF595BE5323A@ucalgary.ca> Content-Transfer-Encoding: 7bit From: Deane McIntyre Subject: Re: BA TV sighting--other way 'round! - tonight Date: Sun, 22 Mar 2009 15:09:04 -0600 To: Old Tube Radios On 21-Nov-08, at 10:39 AM, John Sehring wrote: > > I've just been contacted by producers of Canadian TV series > "Heartland". It's shot in & around Calgary, Alberta by CBC > (they're a bit like PBS in the States). (I don't know if this > series is shown in then States--anyone?) > > Major BA excitement! They need vintage ham (50's & 60's) equipment > for a shoot. The scene is set in a vy remote Rocky Mountain cabin > in the present; cell phones & crackberry's don't work there; > inspirition, "Doesn't old Seth (whose cabin this is) have a > `hamateur' radio set?" Let's turn 'er on and see what > happens...snap of switch, lights on, hum, crackle, ziss, beep beep, > boop (requisite CW); press the mic button, "hello, hello, CQ, is > there anybody out there (Pink Floyd line of lyric)?" > > I offered National NC-125/Johnson Ranger, Drake Twins, T-4B/R-4B, > and Collins S-Line. The set director chose the Ranger & Drake > Twins with some accessories (mics, speaker). Wanted them in their > cases--imagine that! Mine are always run without for fiddling & > thermal purposes. > John -WB0EQ > And they will be on the Heartland episode being shown tonight (March 22) at 7PM local time on the CBC network! So if you are in or hear Canada, or can otherwise view the main CBC English network, you know what to watch tonight! 73, Deane McIntyre VE6BPO ------------------------------ Message-Id: <6.2.1.2.2.20090322182935.04123eb0@pop-server.nc.rr.com> Date: Sun, 22 Mar 2009 18:30:00 -0400 To: Old Tube Radios From: john Subject: Big HB rig Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed http://tinyurl.com/csmgg8 Hope someone gets this Anyone know W6RVR? John K5MO ------------------------------ From: W0EOM@aol.com Message-ID: Date: Sun, 22 Mar 2009 18:47:36 EDT Subject: Re: Big HB rig To: Old Tube Radios MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1237762056" -------------------------------1237762056 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit John - that's Dennis Drew, now W7RVR in Nevada. The tx looks to me to be homebrew, using ex Navy parts. There are no labels, etc, as on a similar tx in our museum. Will In a message dated 3/22/2009 3:29:18 P.M. Pacific Daylight Time, johnmb@nc.rr.com writes: http://tinyurl.com/csmgg8 Hope someone gets this Anyone know W6RVR? John K5MO **************Feeling the pinch at the grocery store? Make dinner for $10 or less. (http://food.aol.com/frugal-feasts?ncid=emlcntusfood00000001) -------------------------------1237762056 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -------------------------------1237762056-- ------------------------------ Date: Sun, 22 Mar 2009 20:18:46 -0400 To: Old Tube Radios From: John Dilks K2TQN Subject: Re: Big HB rig Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Message-Id: <20090323002357.62FDA10B069@srvr1.theporch.com> John, What ever you do, don't tell Vortex Joe! 73, John At 06:30 PM 3/22/2009, john wrote: >http://tinyurl.com/csmgg8 > >Hope someone gets this > >Anyone know W6RVR? > >John K5MO ------------------------------ From: wb3fau@att.net To: Old Tube Radios Cc: Garey Barrell Subject: Re: Inside a 6L6. Date: Mon, 23 Mar 2009 00:25:24 +0000 Message-Id: <032320090025.7070.49C6D6F4000E131600001B9E22193100029B0A02D29B9B0EBF9A0E00CC0D99@att.net> There are several "experts" out there who rebuild, build new amps, and service the old stuff, like Fender, Mesa Bugy etc. Theres also a company called Groove Tubes which selects, matches and sells tubes to old guitar buffs. They have 12AX7s, 6L6s, EL34s, 6550s and others. They do a good business. There is a difference in brands, and the rate of distortion-which is very gradual in tubes VS solid state. A fact some may not know- RCA produced the 1st 6L6 in 1937! and they are still selling today. Russ. ------------------------------ From: Charles Morris To: Old Tube Radios Subject: LOGSA? Date: Tue, 24 Mar 2009 15:08:24 -0500 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Anyone know what's wrong with the LOGSA.mil site? I get some weird "unable to communicate securely with peer" error message. I am looking for a technical manual for an ME-92/URM-38A audio level meter. The only thing I could find online was at NTIS.gov (which is not free). thanks Charles ------------------------------ Message-ID: <49C94198.5090600@comcast.net> Date: Tue, 24 Mar 2009 13:24:56 -0700 From: KA6UUP MIME-Version: 1.0 To: Old Tube Radios Subject: Cleaning Up A Eimac 5CX1500A Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit About 15 years ago, I parted out a RF Plasma Generator. I was going to build an amplifier with the parts, but, slowly but surely I sold off the Vacuum variables and other parts until all I have left is the 5CX1500A, the socket and chimney. It sat on a shelf in a box until the other day when I remembered it and got it out. The silver has blackened badly. I would like to clean it up and sell it. Any suggestions on hoe to restore the silver without damaging it? Thanks Chuck KA6UUP ------------------------------ Message-ID: <000d01d60240$6a5312c0$993e4845@r7n6v2> From: "PHIL" To: Old Tube Radios Subject: Re Eimac Date: Tue, 24 Mar 2020 16:57:52 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Use silver polish to clean up the 5cx1500a. Use the type of polish that is used to clean silver ware Phil ____________________________________________________________ Study criminal justice and earn your degree. Click here to request free program info! http://thirdpartyoffers.netzero.net/TGL2241/fc/BLSrjpYRnJ7PXa491gETjpgOxgtig8h7xFIPjAm2yD8L158WA1bD5a7yDBW/ ------------------------------ Message-ID: <49C95F74.3070001@kd5byb.net> Date: Tue, 24 Mar 2009 17:32:20 -0500 From: Ben Hall MIME-Version: 1.0 To: Old Tube Radios CC: Old Tube Radios Subject: Re: LOGSA? Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Charles Morris wrote: > Anyone know what's wrong with the LOGSA.mil site? I get some weird > "unable to communicate securely with peer" error message. I get the same error. Tomorrow at work I'll get in touch with a guy I know who works at the LOGSA help desk. ;)' later, b ------------------------------ From: WA5CAB@cs.com Message-ID: Date: Tue, 24 Mar 2009 19:07:27 EDT Subject: Re: LOGSA? To: Old Tube Radios MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_d5c.36b99b3a.36fac1af_boundary" --part1_d5c.36b99b3a.36fac1af_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit I get into it OK from two different machines, one running W2K/IE6 and the other running XP/IE7. Both machines complain about the certificate authenticity, but they always have. I just override and go on. In a message dated 3/24/2009 4:33:03 PM Central Standard Time, kd5byb@kd5byb.net writes: > >Anyone know what's wrong with the LOGSA.mil site? I get some weird > >"unable to communicate securely with peer" error message. > > I get the same error. Tomorrow at work I'll get in touch with a guy I > know who works at the LOGSA help desk. ;)' > Robert Downs - Houston wa5cab dot com (Web Store) MVPA 9480 --part1_d5c.36b99b3a.36fac1af_boundary Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * --part1_d5c.36b99b3a.36fac1af_boundary-- ------------------------------ Message-ID: From: "RICHARD GEORGE" To: Old Tube Radios Subject: Manual needed. Date: Thu, 26 Mar 2009 18:55:33 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I need a manual for an Eico 145 signal tracer. I found one on line but it is a gif file and only prints out part of the pages real big. I don't know how to format for regular size printing. Bama don't have one and there are lot of manuals on line for sale for more then what I paid for the Eico. K6KWQ Dick Amps by "MORE POWER" ------------------------------ Message-ID: <49CC4329.3080809@mindspring.com> Date: Thu, 26 Mar 2009 23:08:25 -0400 From: Garey Barrell MIME-Version: 1.0 To: Old Tube Radios CC: Old Tube Radios Subject: Re: Manual needed. Content-Type: multipart/mixed; boundary="------------080501080406060400060201" This is a multi-part message in MIME format. --------------080501080406060400060201 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 73, Garey - K4OAH Glen Allen, VA Drake 2-B, 4-B, C-Line & TR-4/C Service Supplement CDs RICHARD GEORGE wrote: > I need a manual for an Eico 145 signal tracer. I found one on line but it is > a gif file and only prints out part of the pages real big. I don't know how > to format for regular size printing. Bama don't have one and there are lot > of manuals on line for sale for more then what I paid for the Eico. > > K6KWQ Dick > Amps by "MORE POWER" > > > --------------080501080406060400060201 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * --------------080501080406060400060201-- ------------------------------ Message-ID: <001e01c9ae96$41d5d530$929f480c@KB6NAX> From: "Arden Allen" To: Old Tube Radios Subject: Re: Manual needed. Date: Thu, 26 Mar 2009 21:40:58 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit > .......I found one on line but it is > a gif file and only prints out part of the pages real big. ...... Copy the .gif file and open it in a word processor, photo editor, or viewer application like IrfanView which is a free download. www.irfanview.com Arden Allen KB6NAX Adopt a shelter dog, save an innocent life, and make a friend forever =:-) ------------------------------ Message-ID: Content-Type: multipart/alternative; boundary="_45802e0b-a1be-49cf-967a-2be4819071f8_" From: RICHARD SOLOMON To: Old Tube Radios Subject: WANTED: 100 pf @ 4 KV Variable Date: Fri, 27 Mar 2009 17:08:51 +0000 MIME-Version: 1.0 --_45802e0b-a1be-49cf-967a-2be4819071f8_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Looking for a 100 pf Variable Cap with 4 Kv spacing=2C something like a Cardwell 154-14. Anyone have one ? =20 Tnx=2C Dick=2C W1KSZ --_45802e0b-a1be-49cf-967a-2be4819071f8_ Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ---REMAINDER OF MESSAGE TRUNCATED--- * * This post contains a forbidden message format * * (such as an attached file, a v-card, HTML formatting) * * Mail Lists at theporch.com only accept PLAIN TEXT * * If your postings display this message your mail program * * is not set to send PLAIN TEXT ONLY and needs adjusting * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * --_45802e0b-a1be-49cf-967a-2be4819071f8_-- ------------------------------ Message-Id: <6.2.1.2.2.20090327163700.044d1920@oak.cats.ohiou.edu> Date: Fri, 27 Mar 2009 17:08:46 -0400 To: Old Tube Radios From: Rich Post Subject: National CRM scope questions Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Recently found a National CRM at a hamfest. This is a cute little o'scope using an RCA 913 which looks like a metal 6L6 with a one-inch scope display on top. No pic of mine yet but here's a pic and info from Niel W0VLZ. http://www.io.com/~nielw/nat_list/crm.htm Unfortunately the ground side of the the high voltage winding and one side of the AC line have gotten together. I suppose I could solve that with an added isolation transformer but don't trust it. I heated the sealed transformer and pulled the contents out of the National case. Softened the tar and pulled on wires to see if I could solve the short. No success. Plan to put another small transformer in the transformer housing. On the slim chance that the transformer was intended to have this short (can't imagine why), does anyone have a schematic? I already drew out the simple schematic, a positive ground version of the RCA generic schematic for the 913 tube. Have a possible replacement transformer that is quite a bit smaller than the original. Anyone know the beam current for a 913? I'm guessing only a relatively small current, just a few mils that can easily be handled by the smaller transformer. 73 de Rich KB8TAD ------------------------------ From: "Brian Goldsmith" To: Old Tube Radios Subject: Old tube car radio. Date: Sat, 28 Mar 2009 10:30:19 +1100 Message-ID: <10C382D137B84EB4B31252CB383BDF31@pcbriang> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Greetings to all. Can anyone point me in the right direction to get a schematic diagram for an old Fomoco 12 Volt car radio.The model number appears to be 6BFT. TIA,Brian g. ------------------------------ Message-ID: <593345.54318.qm@web90605.mail.mud.yahoo.com> Date: Fri, 27 Mar 2009 17:48:41 -0700 (PDT) From: Jerry Proc Subject: Hotline Telephones To: Old Tube Radios MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Hello Everyone, As a result of recent postings about hotline telephones on the Cryptocollectors mail group, I gathered all the pertinent e-mails and developed the following story: HOTLINE TELEPHONES - MAKING SENSE OF THE COLOURS AND THEIR USE http://jproc.ca/crypto/hotline_phones.html I thought some of you in this group might be interested in the story so I thought I would share. -- Regards, Jerry Proc E-mail: jerry7proc@yahoo.com __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now http://ca.toolbar.yahoo.com. ------------------------------ End of BOATANCHORS Digest 4257 ******************************