This circuit was found in a 1970's Radio Electronics. The pulse transformer has a 1: 1 turn ratio. The triac must be in accordance with the controlled load.
We found this circuit in a 1965 Electronic Design. Transistors are still common but admit...
In the figure we have the way to obtain a voltage indicator for a 3-terminal voltage regulator. The...
August 2016 - Mouser announced the availability of the new capacitors high voltage HV series...