Found in a 90s American documentation, this circuit trips when there is an overvoltage at its output. The SCR can be any general purpose.
This low drift or offset circuit is from an 80's documentation. The configuration can be made with...
This circuit rectifies low voltage sinusoidal signals for measurement purposes, as the circuit is of low...
Indicated for vinyl media recovery, this circuit is from the 80's, having been found in an...