Found in a 1966 Electronics World, this circuit applies to the protection of any analog instrument. The diodes can be of any general-purpose type.
We found this circuit in a 1966 US documentation. It simulates a variable capacitor that can vary...
In the figure we have the way to make the three-phase control of a motor using opto-diacs. The circuit is...
This low Power output stage can source a fraction of watt to a small loudspeaker. The transformer...