Found in a 1967 Delco documentation, this circuit can deliver power from 40 to 50 W at 8-ohm load. The response ranges from 20 to 20 000 Hz. No information is given about the transformer used.
This circuit consists of a simplified Hartley oscillator that changes the frequency according to...
This circuit generates signals of various frequencies and waveforms, making it useful on the...
I found this circuit in an old English magazine from 1979, but it can be easily assembled with...