This is a battery powered 3W power amplifier using germanium transistors. The circuit is from an English documentation from 1967. The transistors are from the time.
This circuit that mimics the sound of the famous Scottish instrument was found in a Popular...
The circuit shown is from the 1960 Mullard transistor reference manual. The circuit has a common...
The circuit we show is a water pump actuator that, in addition to being automatic, has a water...