This circuit was found in General Electric documentation from 1966. The circuit is suitable for any triac. It can also operate with other mains voltages.
With this name, we find a photorelay in a publication from 1966. The transistor is made of...
This circuit was found in an old documentation for radio amateurs. The circuit makes use of an...
Shown in Radio Electronics June 1953, this circuit needs a small adjustable source of 0 to 3 V and...