Found in American documentation from 1968, this circuit uses both diodes and a neon lamp to generate a 4-step ladder. Observe the signal voltage.
With the shadow over the sensor, it is possible to interrupt the sound of your amplifier using this...
Some old analog multimeters use a 22.5 V battery for high resistance measures. These batteries can no...
This circuit can be used in an experimental link for educational purposes. based on an integrated 4093....