Found in a 1960s RCA manual, this circuit uses components from the era. For the indicated circuit R1 is 28ohm and R2 is 1 k.
This simple circuit with sensors formed by bars or separate screens triggers in the presence of...
This simple circuit presents a voltage gain of about 1,500. The input impedance is high and the...
This circuit came out in a Frances Toute LÉlectronique magazine from July 1978, but can still be...