This 25 W phase photo control was found in a 1965 General Electric publication. The circuit uses a LASCR which is an unusual SCR photo today.
This circuit consists of a traditional version of dimmer with triac and was found in a 2000...
Found in an article in the August 1971 Radio Electronics magazine, this circuit supports sensitive...
This is the modern version of the Galena radio in which the detector is a germanium diode (which can...