This circuit was found in an Electronics World of 1966. It has a range of 5 to 25 000 Hz at 1 dB and the diagram includes the power supply.
This small-range MW transmitter can be used as a wireless microphone. The circuit is from an...
This single-transistor oscillator was found in Radio Electronics magazine from February 1962. The...
This source for common, non-high-power car radios can be used on the bench. It was found in a...