This circuit for car engine spot adjustment was found in an 80's Radio Electronics. The circuit makes use of a xenon lamp and the pulse transformer must have a turn ratio of 1:50.
This stage circuitry for amplifying microphone signals makes use of germanium transistors as indicated...
This low power audio amplifier was found at 1992s Popular Electronics. Transistors are general...
This Phase-Shift Oscillator produces sine low frequency signals suitable for many applications. It...