This circuit was found in a Radio Electronics magazine from November 1991. The circuit operates at 2.2 MHz and has a low impedance output.
This low Power output stage can source a fraction of watt to a small loudspeaker. The transformer...
This circuit uses a triac to detect the level of a reservoir, and a sensitive SCR connected to the...
EZP-Q metallized polypropylene capacitors from Panasonic's can be purchased from Mouser...