Using the integrated circuit 723 we found this power supply in an article in the magazine Radio Electronics from August 1971. The transistor may be a BD136 equipped with a heat sink.
This circuit was found in a French documentation from the 80's. The circuit must be powered by a...
The Nerve-test is a traditional electronic game. The player must pass a metal ring through a...
In the figure we show a configuration for a crystal-controlled overtone oscillator using a...