This circuit was found in a General Electric manual from 1970. Its purpose is to provide a preheat to a filament lamp.
The AT21CS11 memory device offers an extended voltage range to accommodate lithium-ion battery...
This loop antenna was found in a 1990s documentation. The circuit includes a field strength meter. The...
Found in Electronics Now from the 90s, this circuit can use any general-purpose transistor. The power...