[Milsurplus] interesting picture

[Ray Fantini]

Would speculate that there is no way this would have happened at a military installation, USCG was under department of Commerce at that time so maybe they had more ability to swap and play around with other radios. The thing I would wonder about is the issue of type acceptance, would assume that no way would they use any radio that was not type accepted and commercially built. Perhaps upon further thought about the picture I have to wonder if this is an amateur station at a USGC facility.

Ray F/KA3EKH


From: Michael Hanz [mailto:aaf-radio-1 at aafradio.org]
Sent: Friday, August 04, 2017 10:51 AM
To: Ray Fantini <RAFANTINI at salisbury.edu>; milsurplus at mailman.qth.net
Subject: Re: [Milsurplus] interesting picture

On 8/4/2017 8:50 AM, Ray Fantini wrote:

Stumbled across this image in a search on EBay, look at the command transmitter. Was it commercial built?  EBay item # 201308536904

Unlikely.  But it depends on what you mean by commercially built.  It is a modified SCR-274N transmitter with balanced output, which says that there are interior changes to match.  The adjustable inductor inside the transmitter has been removed and mounted in the tuner above the set.  I have a couple of these transmitters with that sort of modification, but any ham that is a builder could have put this rig together in short order.  I suspect it was made by a ham in the Coast Guard, who would have had access to one of the machine shops to make the job easier.  There are articles in ham magazines back in the 40s and 50s that describe all of the mods necessary.


Assume the item next to transmitter is modulator and also like the antenna tuner on top the transmitter.

Yup, but if you look closely you'll see they used another command transmitter chassis and built the modulator inside it, with a new front panel.  It still has the snap off tube cover on top.  Both units are sitting on a standard FT-226-A rack.

          73,
 - Mike  KC4TOS
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