[ARC5] What rough beast?

[Mike Everette]

The transmitter is full of "peanut" tubes with wire leads.  If I remember right, the final is a 2E24, maybe an instant-heat version of the 2E26.
The set is constructed using various plug-in modules, most containing one or maybe two such tubes. Not easy to service.
I know of some of this gear being put into ham repeater service many years ago, but it was not known for reliability.
73
Mike
WA4DLF

      From: Mike Morrow <kk5f at earthlink.net>
 To: ARC5 at mailman.qth.net 
 Sent: Wednesday, June 8, 2016 12:48 PM
 Subject: Re: [ARC5] What rough beast?
   
Nameless/call-less wrote:

> Has anyone any information/ thoughts on the T-278/U transmitter?  One just
> popped up on that auction site.  Apparently part of AN/VRC-9.  A dynamotor
> is offered in a separate auction.

Well, it's not aircraft related.  And it's not part of the AN/VRC-9, which is a low VHF band tactical FM set.  It's part of the AN/VRC-19 two-channel high-band non-tactical (military police) VHF FM set of 1952.

 http://radionerds.com/index.php/File:AN_VRC-19_a_8752445257_l.jpg

 http://www.radiomuseum.org/r/motorola_transmitte_radio_t_278u.html

T-278/U, R-394/U, and DY-98/U (12v) or DY-98/U (24v) or DY-100 (6v) all fit in one cabinet/case CS-938/U.

It's heavy and not much use and inspires not much interest, but it is well-made.  I still have one of the fifty or so T-278/U units that my Civil Air Patrol unit got in 1969.  I don't think any were ever used before they were junked.

Mike / KK5F


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