[Milsurplus] RCH Receiver

[WA5CAB at cs.com]

Bob,

According to the manual, it was primarily intended as an entertainment 
receiver but good enough to be a backup for the communications receivers aboard (at 
least when it was new).

It's been 39-1/2 years but I don't recall not being able to turn the volume 
all the way down on the one we had aboard.  I just took a quick look at the 
schematic.  Check the audio gain pot.  My guess is that you've lost the ground 
connection at the bottom.

In a message dated 2/21/2008 5:19:49 PM Central Standard Time, 
w9ran at oneradio.net writes: 
> I picked up this RCH from a buddy who used to collect Navy stuff, but he 
> said he'd never had it powered up.  It incubated in my garage until I 
> got around to lugging the 69 pounds (of 109 total) chassis down to the 
> bench, but to my surprise the caps reformed nicely and it came up 
> working like a champ.  It's an 11 tube superhet built by EH Scott, for 
> Navships and based on the blank "placed in service" nameplate I'm 
> guessing this one may have spent its career in a warehouse.
> 
> What was the RCH used for?  I know Scott made "entertainment" receivers 
> that could operate from AC or DC mains but the RCH is a really heavy, 
> very ruggedly constructed set with a 120VAC power supply and BFO.   
> Since it has both LF and HF coverage, skipping the BC band I'm assuming 
> it was a communications receiver,  but the geared flywheel tuning sure 
> makes it a great SWL band-scanner.   And it's hot from the longwave 
> beacon band all the way up to the 17meter shortwave band.
> 
> Another question - the "Gain" control is a ganged pot that adjusts RF/IF 
> and Audio gain, but even at minimum position audio is still quite loud.  
> Was this by intent?
> 

Robert Downs - Houston
<http://www.wa5cab.com> (Web Store)
MVPA 9480
<wa5cab at cs.com> (Primary email)
<wa5cab at comcast.net> (Backup email)
   
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.qth.net/pipermail/milsurplus/attachments/20080221/3932b643/attachment.htm