[Vintage-Radio] Information request: Radio Craftsmen

[Paul DeFayette]

Good day group,

I recently picked up a couple of Radio Craftsmen items, a model 800
tuner/preamp and a C400 amp.  The quality of craftsmanship looks second to
none and the chrome chassis are very nice looking also.  I have yet to fire
them up.  Of course, I'll bring them up on a variac and check for leaking
caps, etc.

There is not a whole lot of information to be had about this manufacturer on
the web.  I am hoping to learn a fair amount from the collective knowledge
of the group.  The standard array of questions come to mind:

What is the history of this manufacturer?
What were the productive years of this company?
How would one rate the physical and audio quality of their products, the
items listed above, in particular?
Does someone have a list of all their produced components and years of
manufacture?
Does someone have a nice library of Radio Craftsmen literature available for
copies or that can be sent in pdf or jpg format?

I am fascinated by a company that looks to have produced a very good
product, but that I have heard little to nothing about.  Any assistance in
answering my questions/request for information about Radio Craftsmen is
greatly appreciated.

Cheers,

Paul DeFayette