Found in American documentation from the 1970s, this circuit is intended for amplifying analog TV signals from a vidicon camera.
This circuit can be found elsewhere on this site as part of alarms or sirens. The circuit given is...
This 3-digit code switch was obtained from an old American documentation. The capacitor is 470 uF...
Found in a 1967 Electronic Design, this circuit changes the phase of a signal in 8 different ways, given...