[ARC5] Saddle Up Boys!

[Ray Chase]

Well I have a fondness for the RU GF sets.  They are the direct decendents 
of the radios that Radio Frequency Labs (RFL) designed and that Stromberg 
Carlson and Aircraft Radio (ARC) built for the Signal Corps when they 
briefly took over Airmail Service in the late 20's and early 30's.  I have 
an Instruction Book for the Radio Set Type SCR-AA-192 and Radio Set Type 
SCR-AA-183 published by ARC.  The front cover says, "Manufactured for Signal 
Corps, U.S. Army Order No. SC-132311, June 25, 1932".
The SCR-AA-192 is a  BC-AA-179 TRF receiver using four VT-36 (type 36), one 
VT-37 (type 37) and one VT-38 (type 38) tubes.  Interestingly the photos 
show all globe type tubes.  BTW, when did ST bulbs or "shoulder" tubes come 
on the market?  Five plug-in coil sets are listed along with dynamotor, 
junctions boxes, control boxes, etc.
The SCR-AA-183 consistes of the BC-AA-179 receiver and a BC-AA-180 
transmitter.  The BC-180 uses three VT-25 (type 10) and one VT-52 (special 
type 45), again all globe types in the photos.
I have a complete RU/GF set that I will cable up and put on the air one of 
these days when I get a round tuit.
Ray
----- Original Message ----- 
From: "David Stinson" <arc5 at ix.netcom.com>
To: <arc5 at mailman.qth.net>
Sent: Saturday, April 19, 2014 9:50 AM
Subject: Re: [ARC5] Saddle Up Boys!


> There are so few people who care about the RU receivers anymore, I 
> sometimes wonder if *any* useful end is better than sitting in a garage or 
> basement until the kids throw them in the dump.
> I'll bet I could count the working GF/RU sets in
> the whole world on my fingers and have enough left
> to drink my coffee.   Damn shame.  They have an interesting and longer 
> history than do our beloved "ARC-5" sets.
>
> David S.
>
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