Found in documentation from the 90s, this circuit was used in communications receivers of the time. MOSFET is a component of the time, uncommon today.
Found in a 1964 Electronic Design, this circuit suppresses arcs that occur in contacts when a...
The circuit that gave rise to this configuration is from 1978. In the original publication are...
As a reference for restorers, this is the circuit of a digital clock with the TSM201 module. The...