Found in a 1980’s documentation, this circuit must have its signal applied to an amplifier stage. The unijunction transistors can be 2N2646.
This micro FM transmitter uses a tunnel diode as an oscillator. I found it in an English...
This charger was found in the February 1978 issue of Radio Electronics magazine. The circuit is...
We found this circuit in the November 1992 issue of Radio Electronics magazine. The circuit has...