[MRCA] MRCA Digest, Vol 223, Issue 29

Fri Nov 18 09:02:43 EST 2022

I'm looking for a good book on the hisory of radio communications during WW2. Also a book on the BC-659. Any thoughts ?Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: mrca-request at mailman.qth.net Date: 11/18/22  5:35 AM  (GMT-05:00) To: mrca at mailman.qth.net Subject: MRCA Digest, Vol 223, Issue 29 Send MRCA mailing list submissions to	mrca at mailman.qth.netTo subscribe or unsubscribe via the World Wide Web, visit	http://mailman.qth.net/mailman/listinfo/mrcaor, via email, send a message with subject or body 'help' to	mrca-request at mailman.qth.netYou can reach the person managing the list at	mrca-owner at mailman.qth.netWhen replying, please edit your Subject line so it is more specificthan "Re: Contents of MRCA digest..."Today's Topics:   1. Paolo's article in ER this month on the R-390      (scottjohnson1 at cox.net)   2. Re: Joe Long's Electric Radio Article (comcast)----------------------------------------------------------------------Message: 1Date: Thu, 17 Nov 2022 20:09:21 -0700From: <scottjohnson1 at cox.net>To: "'Military Radio Collectors Association'" <mrca at mailman.qth.net>Subject: [MRCA] Paolo's article in ER this month on the R-390Message-ID: <[email protected]>Content-Type: text/plain; charset="us-ascii"I wonder if anyone caught Paolo's article in ER this month regarding detaildifferences in the R-390 and R-390A?I think one big reason the heater strings are 25.2V in the R-390(and R-389and -391) is that there was at least a planned DC power supply module with adynamotor for 28 VDC operation.Has anyone ever seen such a beast?  It also explains the GRC series 4 pininput connector. Scott V. Johnson W7SVJ/AFA6SJSunburst Engineering5111 E. Sharon Dr.Scottsdale, AZ 85254M (480) 550-2358scottjohnson1@ cox.netscott.johnson at ieee.org -------------- next part --------------An HTML attachment was scrubbed...URL: <http://mailman.qth.net/pipermail/mrca/attachments/20221117/4158a7ee/attachment-0001.html>------------------------------Message: 2Date: Fri, 18 Nov 2022 05:33:42 -0500From: comcast <kg2bz at comcast.net>To: scottjohnson1 at cox.netCc: Military Radio Collectors Association <MRCA at mailman.qth.net>Subject: Re: [MRCA] Joe Long's Electric Radio ArticleMessage-ID: <BDC6510F-3DF1-4A78-BC7C-7E2B3AE39725 at comcast.net>Content-Type: text/plain; charset="utf-8"Mark what kind of antenna are you using with those receivers? Thanks JeffSent from my iPhone> On Nov 17, 2022, at 10:04 PM, scottjohnson1 at cox.net wrote:> > ?> I can?t imagine a more cheaply made radio that works so well.  I have a couple of these with installation kits still in the box, as well as a Bendix made example, and a Detrola and an RCA.> I believe they were primarily used for ferrying aircraft from a manufacturer to a completion center, where the BC-1206 would be removed and recycled back to the manufacturer, and the GFE installed for operational use.> I have also heard the ferry command pilots installed them, delivered the aircraft, and removed them for the next flight.  I have also heard that in some smaller aircraft, they were used operationally.  One hears a lot of things.>  > Scott W7SVJ>  > From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> On Behalf Of J Mcvey via MRCA> Sent: Thursday, November 17, 2022 4:46 PM> To: Military Radio Collectors Association <mrca at mailman.qth.net>; B. Smith <smithab11 at comcast.net>> Subject: Re: [MRCA] Joe Long's Electric Radio Article>  > I just repaired one of those  for an aviator/ham. i have no idea what he is going to use it for.> The power consumption was very low, yet it worked very well.> Those NDB systems have been decommissioned as far as I know.> It doesn't cover the 600 meter ham band either.>  > On Thursday, November 17, 2022 at 06:01:59 PM EST, B. Smith <smithab11 at comcast.net> wrote:>  >  > Congrats to Joe Long for his excellent article in this months  "ER" magazine issue on the BC-1206. This little receiver and its other variants allowed single engine and larger aircraft to navigate the A/N airways with precision. Arriving at Destination with an A/N beacon nearby  the aircraft could shoot a non-precision approach and penetrate  low ceilings.   Once near the airport traffic pattern the pilot could receive instructions from the tower and acknowledge by rocking the wings or flashing a light etc. A lot of capability in a 4 pound box. You could even install the receiver with a battery   in a aircraft that did not have an electrical system.>  I  began my aviation career  using this type of receiver and it became an old friend. It was simple, reliable, and easy to use.     This two part article is very compressive (8 pages in Part one) and has excellent references. Job well done Joe.>        "Electric Radio" Nov/Dec 2022, page22> Z> > > >  > >  > > ______________________________________________________________> MRCA mailing list> Home: http://mailman.qth.net/mailman/listinfo/mrca> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:MRCA at mailman.qth.net> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html> ______________________________________________________________> MRCA mailing list> Home: http://mailman.qth.net/mailman/listinfo/mrca> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:MRCA at mailman.qth.net> > This list hosted by: http://www.qsl.net> Please help support this email list: http://www.qsl.net/donate.html-------------- next part --------------An HTML attachment was scrubbed...URL: <http://mailman.qth.net/pipermail/mrca/attachments/20221118/6868a112/attachment.html>-------------- next part --------------A non-text attachment was scrubbed...Name: image001.gifType: image/gifSize: 9511 bytesDesc: not availableURL: <http://mailman.qth.net/pipermail/mrca/attachments/20221118/6868a112/attachment.gif>-------------- next part --------------A non-text attachment was scrubbed...Name: image002.jpgType: image/jpegSize: 659917 bytesDesc: not availableURL: <http://mailman.qth.net/pipermail/mrca/attachments/20221118/6868a112/attachment.jpg>------------------------------_______________________________________________MRCA mailing listMRCA at mailman.qth.nethttp://mailman.qth.net/mailman/listinfo/mrcaEnd of MRCA Digest, Vol 223, Issue 29*************************************
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/mrca/attachments/20221118/03ef1cb5/attachment.html>