I knew it was an oddity. Thanks for noticing the Conelrad markings. The chassis is a well-done chassis but fairly early in its design. Early 1960s is about right.
Remember working on a 1Kw Collins 21V transmitter that had a Conelrad crystal in it.Tried it on the dummy load--even after all those years---worked fine!!!Only transmitter I dealt with that had a Conelrad crystal in it!