[Milsurplus] Question(s) about TMC receivers

[radioman390 at cs.com]

  I have a pair of TMC-made  STR-5 "strip" receivers which I hope to 
sell
soon. Basically its a rackmount HF receiver which uses plug-in
subassemblies which control the frequency and mode. The plug-ins are
rather sophisticated with a big crystal oven and a demodulator section.

I've tried to figure out where and how they were used. I assume the
receiver/power supply portions were permanently mounted in the 
operations are, and nearby (maybe under lock and key?) was
a rack which contained multiple subassemblies, powered up to keep the
ovens hot and the frequency stable. They'd change the plug-ins
according to the mission need. Maybe they changed frequencies according
to DEFCON levels?

So I figure Cheyenne Mountain or maybe a WHCA site, but does anybody
know for sure?

The TMC website has the receiver listed, but the link to the photo is
broken.

http://webspace.webring.com/people/st/tmcvintage/index1.html