[MRCA] MRCA Digest, Vol 169, Issue 2

Fri May 4 20:18:10 EDT 2018

I'm in, sent my request.

Carl

On Fri, May 4, 2018 at 9:41 AM <mrca-request at mailman.qth.net> wrote:

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> Today's Topics:
>
>    1. Announcing formation of The Midwest Military Radio        Collectors
>       Group (MMRCG) (John P. Caldwell)
>    2. Australian WSA-38 (Ray Fantini)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 1 May 2018 21:31:10 -0400
> From: "John P. Caldwell" <jcaldwell at rbcos.com>
> To: <mrca at mailman.qth.net>
> Subject: [MRCA] Announcing formation of The Midwest Military Radio
>         Collectors Group (MMRCG)
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="us-ascii"
>
> Announcing the formation of The Midwest Military Radio Collectors Group
> (MMRCG)
>
> Building on the success of the Military Radio Collectors Association (MRCA)
> in the Northeast and the Military Radio Collectors Group (MRCG) on the West
> coast, we are pleased to announce the formation of the Midwest Military
> Radio Collectors Group (MMRCG).  We share the same goal - to bring together
> people who have a common interest in the collection, restoration,
> operation,
> and free exchange of information pertaining to military radio and related
> equipment.   Our intention is the group will be loosely structured, with
> membership consisting of those who participate, whether in person at
> events,
> on the air, or via the MMRCG groups.io board.  The board can be found at
> <https://groups.io/g/MMRCG> https://groups.io/g/MMRCG
>
> Success of this group depends on participation so please watch our
> groups.io
> board for future news regarding nets and activities.
>
> While our Midwest members are more geographically spread-out, our initial
> event will be one that already brings many of us together - The Dayton
> Hamvention, held May 18-20, 2018, at the Greene County Fairgrounds in Xenia
> OH.  MMRCG will be operating the usual nets on Saturday 5/19:
>
>      - The WWII Net on 3885 KHz AM, 12:00pm EDT
>
>      - HF Pack Net on 18.157.5 MHz USB, 1:15pm EDT
>
>      - The Cold War Net on 51.0 MHz FM, 2:30pm EDT
>
> Both 51.0 MHz FM and 3885 KHz AM will be monitored all day Friday and
> Saturday, and an informal "radio check" will be held at 4PM Friday
> afternoon
> to make sure those batteries are charged!
>
> Other suggestions for events, both in-person and on-the-air, are welcome.
> Look for our banner and canopy in spaces 7740, 41 & 42 at the Hamvention
> and
> stop by to say hi and visit.
>
> Bob W9RAN
> John WD8INC
> Joe WA4VAG
>
>
>
>
>
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> ------------------------------
>
> Message: 2
> Date: Fri, 4 May 2018 14:37:19 +0000
> From: Ray Fantini <RAFANTINI at salisbury.edu>
> To: "milsurplus at mailman.qth.net" <milsurplus at mailman.qth.net>, MRCA
>         <mrca at mailman.qth.net>
> Subject: [MRCA] Australian WSA-38
> Message-ID: <5bd35b09fcb14849a40c48505f17fa67 at EXCHMBX01.salisbury.edu>
> Content-Type: text/plain; charset="us-ascii"
>
> A friend just picked up an Australian WS-38 transceiver. Just for fun I
> went out and pulled the schematic on the set being I never saw one before
> and have to say that it may be the most complex and difficult design that I
> have ever come across for a small field radio. It has just five tubes and
> uses a couple tubes for different functions such as V1A as the mixer for
> the receiver and also as the modulator for the transmitter, V1B is the
> oscillator in both receive and transmit has its plate tied to V1A, V1C is
> the first IF amplifier and that along with the RF power amplifier V2A are
> the only two tubes not doing double duty.  My favorite has to be V1D that's
> not only the second IF amplifier it's also the receiver audio amplifier and
> just for good measure serves as the microphone preamplifier in transmit.
> These are not multipole tubes in one envelope but just regular pentodes
> that in the case of V1D are being an IF amplifier and audio amplifier at
> the same time.
> The layout of the set is compact and it looks like it would be an bear to
> work on it along with the fact that unlike just about everything else in
> the world where each tube would be labeled V1 for the first tube, V2 for
> the second and so on they just use V1 A, B, C and D to reference the tubes
> with the only tube getting the honor of a new number being the PA tube
> referred to as V2.
> Anyone who may have personal experience please let me know about working
> with and using this strange little radio.
> A web page that has good pictures and a schematic of the set can be seen
> at:
>
> https://www.pa3esy.nl/military/gb/army/ws38/html/ws38_set.html
>
>
> Ray F/KA3EKH
>
>
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> End of MRCA Digest, Vol 169, Issue 2
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