[Milsurplus] [MRCA] WS-19 Modulation

[Mike Feher]

Hi Ray - 

 

I used a 19 set on the military nets on 75 on occasion. This was in the
later 80's. I also always used it with the original dynamotor power supply
box. I typically used a T-368F for rag-chews and when I was net control. I
found the original set to have more than adequate modulation. My set was
mint with all the accessories. I still have it down in the basement. I also
made a Pye to BNC adaptor to make it interface easier with my antenna
switching and power meter, etc... 73 - Mike 

 

Mike B. Feher, N4FS

89 Arnold Blvd.

Howell NJ 07731

908-902-3831

 

From: mrca-bounces at mailman.qth.net <mrca-bounces at mailman.qth.net> On Behalf
Of Ray Fantini via MRCA
Sent: Monday, June 9, 2025 10:03 AM
To: MMRCG at groups.io; mrca at mailman.qth.net
Cc: milsurplus at mailman.qth.net
Subject: [MRCA] WS-19 Modulation

 

Picked up a WS-19 at Hamvention, it's a basket case so have no problems
doing some modifications to it. Started by removing the VHF set and am now
in the process of replacing tons of capacitors and lots of the old brittle
wiring.

The goal is to end up with a another low power AM transceiver that I can run
at events.

In addition to the VHF junk that's been removed they also had an intercom
audio amplifier in the set and have been thinking of using that to drive a
speaker or better yet as a modulator for the 807 in the PA. The existing
circuit uses a grid modulation system but wondering if anyone ever used the
6V6 in the intercom amplifier to modulate the 807 as a plate modulated
transmitter? figure maybe I can find an old tube CB that I can take the
modulation transformer out of.

 

Ray F/KA3EKH

 



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