This circuit is from an old Electroics Now. Its purpose is to protect the fax and modem lines of two computers of the time. Suppressors are types of the time.
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...