Found in documentation from the 1980s, this converter or inverter circuit uses components from that time, operating at a frequency of 100 kHz.
This circuit uses high voltage transistors to provide direct power from the 110 V power grid or a...
This circuit was designed to work with the previous one in triggering a relay by the sounds picked up...
This circuit was suggested by Signetics in 1980s documentation. The circuit makes use of the...