[Milsurplus] Mercury Comms

[David Stinson]

I looked into this several years ago, hoping to get technical details
about the HF equipment in Mercury.  
After politely, repeatedly trying to explain 
the difference between a "block diagram" and a "schematic diagram,"
I concluded that I'd have to go 
to one of the museums and get permission for a personal examination
in order to determine if this 1963 spacecraft used any vacuum tubes
in its comm gear; that's not likely to happen.  
Have any of you had any luck getting componant-level details?