This circuit drives symmetrical loads through a single transistor. The circuit is from a Radio Electronics from January 1993. The power depends on the MOSFET used.
This circuit, which uses a planar silicon sensor, is from a 1964 Electronic Design. The component...
Found in an Electronic Design from the 90s, this circuit measures the phase difference between two...
This simple charger was found in a 1980s documentation. The transistor may be the TIP42 with a...