This circuit is suggested by a 1965 General Electric documentation. The triac must be in accordance with the controlled load.
This siren was found in a 1980s documentation. The circuit makes use of very old operational that were...
November 2016 - Super capacitors from 1 F to 3 500 F from AVX can now be purchased from Mouser...
The diode of this circuit must have current according to the motor. What it does is apply motor...