A 75 Meter AM Quarantine Converter for the Q-31 Receiver (video)

A while back Fred KC5RT sent me a nice collection of parts, including some 6 MHz crystals. I had been thinking of making a converter to put ahead of my Q-31 receiver. When Fred’s 6 MHz rocks arrived, I knew that The Radio Gods Had Spoken (TRGHS).

I found some NE602 chips in the junk box. I used an Altoid-sized box for the case. The toroids are from W8DIZ. I use trimmer caps from KC5RT to resonate the input and output circuits.

Hooray! Now I can listen to 75 Meter AM on the Q-31. I may have to build a transmitter to go with this contraption.

Thanks again Fred.