Suggested by General Electric in a 1968 documentation this integrated amplifier uses a component of the era, the PA237. The circuit runs on 24 V and excites a 16-ohm speaker.
) This variable frequency oscillator was found in an old American documentation. Transistors allow more...
We found this circuit in an American documentation from the 90s. The circuit produces a 1 kHz...
In the figure we show how to use common diodes to get a reference near 3 V in a car gearbox. The...