Quote:
Originally Posted by marty59
Here's a clue....Chassis number (if you can find one) will be a six digit number beginning with 120xxxx. Possible numbers 120699/1207xx and this would point to the direction of Howard Sams 724-3/3A. The "A" would be like a remote chassis. The radio chassis will be under another Howard Sams I would believe but 724 may be of some reference to that.
Other H.S. numbers may be 650-1, 598-2, 576-2....but these are getting quite a bit earlier but the chassis number would still be starting with 120xxx.
Even as a point of reference, an RCA CTC-15 is H.S. 673-2 so it shouldn't be earlier than that.
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I checked the chassis and found no useable numbers to ID it. Other than some part numbers...I see nothing that resembles the potential chassis number you mentioned starting with 120XXX. The code date on the factory original tubes is 1965.
I've included a scan of the tube layout...I don't know if that's specific enough to be of any help, but I thought I'd include it just in case.
Thanks.
Bob.