This power stage with two transistors was found in Radio Electronics magazine from October 1963. The transistors must be equipped with heatsinks and the supply voltage is 12 V.
Using a DAC038 IC this circuit is from Radio Electronics from May 1983. The circuit must be...
This circuit with traditional discrete components was found in a 1990 documentation. The circuit can...
This circuit is from an American 80's documentation. The circuit indicates when the voltage of a 9 V...