This circuit was found in Delco documentation from 1966. The components are from that time. Information on the transformer winding is not provided.
This 70 kHz oscillator is used to erase tapes in pre-recording. The circuit is from 1968 General...
This circuit acts as a VU-meter when connected at the output of any audio amplifier, triggering a...
When the voltage exceeds the value given by the zener, this circuit from a 1990 documentation...