Found in a 90s Electronic Design, this circuit employs CMOS functions to mix signals from two inputs. Capacitors and resistors depend on how the signals are to be sampled.
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...