[AMRadio] Radio ID

[k0ng at inebraska.com]

 Dennis: sri I dont know anythingre ur rig but would like to hear it on 160
 (or 75) this winter. Good luck DE Charlie, K0NG  ..

Quoting W7QHO at aol.com:

> Guys,
> 
> Just came into possession of an interesting rig.   Front panel and top lid 
> labeling sez it was made for the US Department of the Interior Grazing
> Service 
> by the Radio Specialty Manufacturing Service in Portland Ore.  No dates.
> 
> Configured as a transmitter and receiver in a 10.5X19X16 (HWD) steel cabinet
> 
> sharing some common PS circuits.  The xmitter is crystal controlled, 6K6 osc.
> 
> driving a pair of 807s parallel connected with a pi output tank.  Came with a
> 
> 2558 xtal in place. Modulated by a pair of 6L6s driven by a 6C8 dual triode 
> driven in turn by a 6Q5 triode speech amp which appears to be setup for an
> xtal 
> mic.  Thordarson CHT multimatch mod transformer.  The second 807 appears to 
> have been added later (different socket type and odd placement on the
> chassis).
> 
> Receiver lineup: 6K7 RF, 6K8 mix/osc, 6K7 IF (freq unk), 6Q7 det/first audio,
> 
> 6K7 BFO and 6K6 audio out.  There is also a 6H6 which appears to have been 
> used in a squelch circuit which I haven't doped out yet.  The 6K8 osc. half 
> appears to have been modified for xtal control somewhere along the line with
> a 
> (5-pin tube) socket added on the front panel. The osc. coil was left in
> place, 
> however.  Frequency range 1.6 - 3.5 mHz according to the receiver tuning
> dial.  
> Got it with a 2264 receive xtal in place.
> 
> I would put construction somewhere in the 40s based on the components used 
> which included cloth covered wiring, Sprague "back beauty" paper caps and a 
> couple of knobs on the front which could only have come off a BC-610 TU. 
> Front 
> panel labeling done with neat little engraved Bakelite and metal plates.  
> Cabinet and chassis custom made with a professional look about them.  Many
> tube 
> sockets and other chassis mounted components riveted in place.  The chassis
> does 
> not slide out: access to the underside components requires removal of a
> bottom 
> plate.  Weighs in at about 60 lbs.
> 
> Oh yes, 80 LV rectifier and a pair of 866 Jrs.
> 
> Anyone have more on the rig, company, other, etc?
> 
> Thanks.
> 
> Dennis D.  W7QHO
> Glendale, CA
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