Doug,
This is not the circuit you are thinking of but the Fremodyne is a one tube
superhet. One triode of a 12AT7 is the local oscillator, the other is a
converter/super-regenerative detector at the I.F. frequency. Several radio
manufacturers produced them as low cost fm receivers in the late 1940's.
ray

"Dougwix" wrote in message
...
Back in the late 60's, I built a one tube superhet from a magazine called
Elementary Electronics. I still have that radio but not the magazine. Can
anyone tell me what month and year had that project? The circuit uses a
6M11
compactron and a 1N34 detector.
Doug