This circuit filters low frequency noise from the turntable motor. We found it in a 1989 documentation. The font doesn't have to be symmetrical, but it should have excellent filtering.
This ultra-simple test circuit is of great use in any electronics bench. The power is supplied by a...
This circuit was found in an Electronics World magazine from 1990. The circuit can be mounted...
This Pierce oscillator was found in American documentation from the 1980s. Transistors support modern...