20100301.ba v04_n319.bam.20100301 >From ???@??? Mon Mar 1 00:17:10 2010 -0500 Date: Mon, 1 Mar 2010 00:00:11 CST From: Old Tube Radios To: Old Tube Radios Subject: BOATANCHORS digest 4319 Message-Id: <20100301060012.040483E1F20@minime.theporch.com> BOATANCHORS Digest 4319 Topics covered in this issue include: 1) Lube for TBO/TBX dyno by John J Mccarty 2) Re: Lube for TBO/TBX dyno by rbethman 3) Re: Lube for TBO/TBX dyno by rbethman 4) Re: Lube for TBO/TBX dyno by aafradio 5) Old gear available by "JAMES HANLON" 6) ARB question by Rich Post 7) Re: ARB question by WA5CAB@cs.com 8) Re: ARB question by Rich Post 9) FW: Comet Pro Coil Data by AB Bonds 10) National NC 98 Knob by "RICHARD GEORGE" 11) SCR-AD-183 ?? by "David Stinson" 12) S-100 speaker by "Paul Kraemer" 13) Fw: S-100 speaker by "Paul Kraemer" 14) TBS Document Update by Jerry Proc ---------------------------------------------------------------------- Message-ID: <4B855A43.9040907@lucent.com> Date: Wed, 24 Feb 2010 10:56:35 -0600 From: John J Mccarty MIME-Version: 1.0 To: Old Tube Radios Subject: Lube for TBO/TBX dyno Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit I may have asked this before and just forgot. If so, sorry. Anyway, I picked up a 12v to 500v dynamotor for the Navy TBO series of portable radios. From what I know, the TBO was replaced by the TBX, and it looks like this dyno could power either transmitter. Now the question: There are two little screw in plugs on the unit above where the bearings would be. Oil is dropped into these openings for lubrication and if so, how much? Thanks and 73 John n9hrt ------------------------------ Message-ID: <4B855D17.4050406@comcast.net> Date: Wed, 24 Feb 2010 12:08:39 -0500 From: rbethman MIME-Version: 1.0 To: Old Tube Radios CC: jmccarty@alcatel-lucent.com Subject: Re: Lube for TBO/TBX dyno Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit John, Usually these oil points take several drops of oil each. It is going to depend more on how long they have sat. If it has been a long time, you may have to use a needle type oil bottle, and flow it in, not letting it over flow, but as long as it will accept it. Bob - N0DGN On 2/24/2010 11:56 AM, John J Mccarty wrote: > I may have asked this before and just forgot. If so, sorry. > > Anyway, I picked up a 12v to 500v dynamotor for the Navy TBO series of portable > radios. From what I know, the TBO was replaced by the TBX, and it looks like > this dyno could power either transmitter. > > Now the question: There are two little screw in plugs on the unit above where > the bearings would be. Oil is dropped into these openings for lubrication and if > so, how much? > > > Thanks and 73 > > > John n9hrt > > > -- +------------------------------------------------------------------+ | AM Amateur Radio Operator NØDGN | +------------------------------------------------------------------+ | http://home.comcast.net/~rbethman/ | +------------------------------------------------------------------+ | Bob Bethman \\\|/// " The absence of a danger | | \\ ~ ~ // signal does *NOT* mean | | rbethman@comcast.net (/ @ @ /) that everything is OK " | +----------------------o00o---°(_)°---o00o-------------------------+ ------------------------------ Message-ID: <4B8561C4.8070009@comcast.net> Date: Wed, 24 Feb 2010 12:28:36 -0500 From: rbethman MIME-Version: 1.0 To: Old Tube Radios CC: jmccarty@alcatel-lucent.com Subject: Re: Lube for TBO/TBX dyno Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 8bit John, The one thing that sticks in my mind, is that these are screw in plugs. A lot of the time, this would indicate a "grease" receptacle. The intent being to infrequently turn the cap a half turn to apply more grease. I don't have a manual on any of these, so I can only go by your description. It would be great to see a picture. Feel free to send one direct if you have one, or the ability. Bob - N0DGN On 2/24/2010 11:56 AM, John J Mccarty wrote: > I may have asked this before and just forgot. If so, sorry. > > Anyway, I picked up a 12v to 500v dynamotor for the Navy TBO series of portable > radios. From what I know, the TBO was replaced by the TBX, and it looks like > this dyno could power either transmitter. > > Now the question: There are two little screw in plugs on the unit above where > the bearings would be. Oil is dropped into these openings for lubrication and if > so, how much? > > > Thanks and 73 > > > John n9hrt > > > -- +------------------------------------------------------------------+ | AM Amateur Radio Operator NØDGN | +------------------------------------------------------------------+ | http://home.comcast.net/~rbethman/ | +------------------------------------------------------------------+ | Bob Bethman \\\|/// " The absence of a danger | | \\ ~ ~ // signal does *NOT* mean | | rbethman@comcast.net (/ @ @ /) that everything is OK " | +----------------------o00o---°(_)°---o00o-------------------------+ ------------------------------ Message-ID: <4B856EB2.6080509@aafradio.org> Date: Wed, 24 Feb 2010 13:23:46 -0500 From: aafradio MIME-Version: 1.0 To: Old Tube Radios CC: Old Tube Radios Subject: Re: Lube for TBO/TBX dyno Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hi John, Bob makes a good point. I'm assuming you are talking about a plug in the bearing cage, or spider, as it is sometimes called. In the TBX-2 dynamotor I've been working on like forever, such plugs don't exist (second photo down at http://aafradio.org/garajmahal/TBX-2arm.html ). In fact if it is actually intended for *oil* lubrication, it is normally only associated with plain bearings of the "Oilite" type, which are porous and readily accept lubrication from the outer diameter. If it was intended to accept *bearing grease*, ball bearings of the type used in all of the dynos I've ever seen also would need a matching hole in the outer race to accept any grease pumped in there, usually accompanied by an annular groove in the bearing cage so that perfect lineup wasn't required during installation. If there is a cover plate on the ends with two retaining screws, it's probably just meant to be lubricated from those ends. Did you remove one of the plugs and see what's behind it? Mike Hanz KC4TOS rbethman wrote: > John, > > The one thing that sticks in my mind, is that these are screw in plugs. > A lot of the time, this would indicate a "grease" receptacle. The > intent being to infrequently turn the cap a half turn to apply more > grease. > I don't have a manual on any of these, so I can only go by your > description. > It would be great to see a picture. > Feel free to send one direct if you have one, or the ability. > Bob - N0DGN > > On 2/24/2010 11:56 AM, John J Mccarty wrote: >> Anyway, I picked up a 12v to 500v dynamotor for the Navy TBO series >> of portable >> radios. From what I know, the TBO was replaced by the TBX, and it >> looks like >> this dyno could power either transmitter. >> >> Now the question: There are two little screw in plugs on the unit >> above where >> the bearings would be. Oil is dropped into these openings for >> lubrication and if >> so, how much? ------------------------------ Message-ID: From: "JAMES HANLON" To: Old Tube Radios Subject: Old gear available Date: Wed, 24 Feb 2010 12:05:51 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0101_01CAB549.B59A2A60" This is a multi-part message in MIME format. ------=_NextPart_000_0101_01CAB549.B59A2A60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Y'all, A friend from Missouri supplied me with the following information. A = local acquaintance of his who he tells me is trustworthy has the = following equipment for sale. In his forwarded e-mail, he said he would = be offering it to his friends before he took it to the local hamfest. = No prices were included in the email. If you are interested, you can contact Al Gallo, W0ERE at 417-839-4865 = or at erecom@hotmail.com . The equipment = includes: Johnson Viking II, Heath SB-301 and SB-401, Gonset "AM transmitter" = (looks like a GSB-100 in the picture), Heath DX-100, Collins R-390, = Collins 51J4, Hammarlund HQ-145X, Ten-Tec Triton IV, Heathkit keyer = (looks like an HD-10), Heath AT-1, Hallicrafters S38D, several = transmitting tubes. Jim, W8KGI ------=_NextPart_000_0101_01CAB549.B59A2A60 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 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * ------=_NextPart_000_0101_01CAB549.B59A2A60-- ------------------------------ Message-Id: <6.2.1.2.2.20100225220914.05fcebb0@oak.cats.ohiou.edu> Date: Thu, 25 Feb 2010 22:26:23 -0500 To: Old Tube Radios From: Rich Post Subject: ARB question Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Been working on an ARB which like most examples has been ham-modified to accept front-panel controls and AC power supply as per the June 1958 CQ magazine. It is now working but has the usual need for a bit of deoxit on the bandswitch since I have to wiggle it just a bit to get the setting to work properly. Not having a manual for the piece, what is the trick to get to the bandswitch? It looks like its inaccessible from all sides. I would like to at least spritz it a bit. (And yes I am well aware that some bandswitch insulating materials will absorb the deoxit. I would prefer a closer encounter with deoxit on the bandswitch but please let's not open the topic of spritzing versus applying with tooth pick directly on the contacts. I just want to be able see those contacts at this stage. ) Rich KB8TAD ------------------------------ From: WA5CAB@cs.com Message-ID: <1efef.4f221b5f.38b8a454@cs.com> Date: Thu, 25 Feb 2010 23:13:08 EST Subject: Re: ARB question To: Old Tube Radios MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="part1_1efef.4f221b5f.38b8a454_boundary" --part1_1efef.4f221b5f.38b8a454_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_1efef.4f221b5f.38b8a454_boundary-- ------------------------------ Message-Id: <6.2.1.2.2.20100226012719.05f8f118@oak.cats.ohiou.edu> Date: Fri, 26 Feb 2010 01:35:00 -0500 To: Old Tube Radios From: Rich Post Subject: Re: ARB question Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Hi Robert, Many thanks for the direct e-mail copy with PDF page on RF/ IF coil box removal for the ARB. Have done that for BC-312 and 342 before and assumed something similar. Will give it a try. 73 de Rich KB8TAD At 11:13 PM 2/25/2010, WA5CAB@cs.com wrote: >* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * >* ---REMAINDER OF MESSAGE TRUNCATED--- * ------------------------------ Content-class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: FW: Comet Pro Coil Data Date: Fri, 26 Feb 2010 10:12:13 -0600 Message-ID: From: AB Bonds To: Old Tube Radios This question arose a week or four back, and I have finally managed to crank up my local gain enough to dig the information out. Herewith the specs for Hammarlund Comet Pro coils. The original forms (of which I have two) are porcelain, 1 7/16", five pin. I have also used the plastic scalloped five-pin Hammarlund forms with some success. This is from "The Offical Short Wave Radio Manual". Winding Data on Coils for New Comet "Pro" W.L. Coils (to be wound on standard forms) Wavelength Primary Secondary Coil No. Range Turns Wire Size Turns Wire Size T. P. I. AA W.L. 15-31 m 3 #30 DSC 7 #20 DSC 6 BB W.L. 28-61 m 3 " 16 " 12 CC W.L. 56-120 m 4 " 29 " 24 DD W.L. 115-250 m 5 " 55 10/41 Litz 56 EE W.L. 250-550 m 8 " 136* " Two-bank T.P.I. equals Turns Per Inch *The turns given are a guide only--the inductance should be 1.5-2% greater than our present No. 5-W.L. coil (???) OSC Coils (to be wound on new forms with holes for tap--these coils have no primaries) Wavelength=09 Coil No. Range Turns Wire Size T.P.I. Tap AA--OSC 15-31 m 7 #20 DSC 6 Tap at 1 2/3 turns from bottom BB--OSC 28-61 m 14 " 12 Tap at 2 2/3 turns from bottom CC--OSC 56-120 m 23 " 24 Tap at 4 2/3 turns from bottom DD--OSC 115-250 m 39 #28 SSC 56 Tap at 9 2/3 turns from bottom EE--OSC 250-550 m 80 " 60 Tap at 16 2/3 turns from bottom All taps to be soldered to the "P" terminals of coils CC-W.L., DD-W.L., CC--OSC and DD--OSC; coils also to have jumpers between the "G" terminal and the "H" terminal next to the "K" terminal. Forms 1 and 7/16 inch in diameter, five-pin. Some words of interpretation, non-authoritative, from A. B. Bonds: SSC, DSC =3D Single Silk and Double Silk Covered. The socket pins are labeled appropriate to tube usage, i.e., "P", "G", "K" and two "H". For the W.L. (antenna) coils, the primary is between "P" and the "H" NOT next= to the "K" terminal. The secondary is between the "H" next to the "K" terminal and the "K" terminal (which is grounded). The "G" pin is attached to a secondary variable cap that augments the bandspread for the CC and DD bands, hence the need for the jumper from the "G" terminal to the "H" terminal NOT next to the "K" terminal for those bands. The OSC coils run between "H" next to the "K" terminal and the "K" terminal. The "K" terminal is grounded. The tap (nearest the "K" terminal) is attached to the "P" terminal. The jumpers described above are also used on the CC-OSC and DD-OSC coils. I have no idea what is meant by "All taps to be soldered to the "P" terminals of coils CC-W.L. and DD-W.L.", since those coils do not have taps. ------------------------------ Message-ID: From: "RICHARD GEORGE" To: Old Tube Radios Subject: National NC 98 Knob Date: Fri, 26 Feb 2010 18:31:25 -0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit I need a bandspread knob for a National NC 98 Recevier I'm redoing. Please contact me off list Thanks K6KWQ Dick Amps by "MORE POWER" ------------------------------ Message-ID: <6521235ECEE04BF6B5099162AA88F33F@boudreaux> From: "David Stinson" To: Old Tube Radios Subject: SCR-AD-183 ?? Date: Sat, 27 Feb 2010 11:12:49 -0600 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original Content-Transfer-Encoding: 7bit Does anyone have any piece or manual that's designated "BC-AD-xxx?" I'm trying to find any contracts/orders/dates from the data plates of the -AD variant of the SCR-183. I have order and date info on all but that one. Thanks! ------------------------------ Message-ID: <7A0FF32AE4BF4616901EAF78C15D0960@ENGR2> From: "Paul Kraemer" To: Old Tube Radios Subject: S-100 speaker Date: Sat, 27 Feb 2010 16:46:58 -0600 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=original Content-Transfer-Encoding: 7bit For Sale Very nice condition Hammarlund S-100 speaker. This speaker is the matching speaker to the last HQ series. Has a 6 x 9 speaker. Asking $50 Picture(s) available to any interested potential buyer Paul K0UYA ------------------------------ Message-ID: From: "Paul Kraemer" To: Old Tube Radios Subject: Fw: S-100 speaker Date: Sat, 27 Feb 2010 21:24:39 -0600 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="Windows-1252"; reply-type=response Content-Transfer-Encoding: 7bit Thanks all I think the speaker has been spoken for Paul K0UYA ----- Original Message ----- From: "Paul Kraemer" To: ; "Old Tube Radios" ; ; "BOATANCHORS" ; Sent: Saturday, February 27, 2010 4:46 PM Subject: S-100 speaker > For Sale > Very nice condition Hammarlund S-100 speaker. > This speaker is the matching speaker to the last HQ series. Has a 6 x 9 > speaker. > Asking $50 > Picture(s) available to any interested potential buyer > Paul K0UYA ------------------------------ Message-ID: <227350.94952.qm@web112311.mail.gq1.yahoo.com> Date: Sun, 28 Feb 2010 19:48:11 -0800 (PST) From: Jerry Proc Subject: TBS Document Update To: Old Tube Radios MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Hello Everyone, I have updated my TBS document with new photos and a PDF file which consists of selected extracts from the TBS manual. Pages 8 and 9 of the document contain info about TBS contracts. Does anyone know the exact purpose of the Howard Radio filter accessory for the TBS set? It's not even shown in the 1945 version of the manual. http://jproc.ca/rrp/tbs_tx_rx.html -- Regards, Jerry Proc E-mail: jerry7proc@yahoo.com __________________________________________________________________ Looking for the perfect gift? 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