This circuit can be used to obtain a zener voltage from a common zener of another value, adjusting in a multimeter. The circuit is from an American documentation of the 1970s.
Found in 1967 General Electric documentation, this circuit is intended for the control of...
We found this amplifier in a publication of 1990, but it can be mounted today with some exchanged...
This circuit has an oscillator triggered when the microphone picks up sounds, noises or even...