Hello all. I read a QST article about putting the Air Force surplus AN/APX-6 transpondor on the air on 1296 as a transceiver in QST, September 1960. Last month I decided, it's time to look into that project, and found one on Ebay. It's an already converted unit, by K3NUZ (unfortunately, an SK). I'm not sure if it will be more work figuring out how his conversion works than converting one myself would be, but I'm sure it will be a fun project. It's missing one of the knobs on the front, the one that turns the Veeder-Root counter for the Receive frequency. I'm wondering if anyone has an old one kicking around the shack - it would really help me working on this old rig. Also if anyone has any info or advice about how these conversions usually went, I'd like to hear about it. Thanks.