This circuit was obtained from an American documentation of 1967. The circuit provides a 30 mA output current for driving standard Nixie indicator tubes at the time.
With a touch of the sensor, the output of the 4013 changes state from high to low or vice versa. In...
The traditional circuit was taken from a French magazine Radio Plans that no longer exists but can...
The coil of this analog composite video signal transmitter is formed by 6 or 7 splashes of 26 or...