Check with "vintagemanuals.com", he seems to have everything.

Concerning the last post, the company is Coto not Cato and the Newark catalog numbers for the relays are 62K0528 for the 12 volt version and 62K0525 for the 5 volt version.

Newark carries the Cato relays, they run about $7.00 and are a drop in replacement. Look for the Cato 2200 series

Hi Everyone, I'm looking for the following Motorola transistors: M9649, M9713, M9707, M9706, M9648 and M9807. I've searched the internet and asked dealers and no one seems to have them. None of the replacement companies like NTE even list them. Anyone have an idea?

Can anyone tell me how to lift the RF board in the RF synthesizer in an R2200A. Apparently there are components attached to the chassis and then soldered to the board. I can't raise it up high enough to see what's going on under there.