This circuit appeared in Radio Elecronics magazine in 1968. The operating circuit is a general-purpose type at the time and the power supply must be symmetrical.
This circuit causes an incandescent lamp to flash according to the input audio signal. The SCR...
This intermediate frequency amplifier step using 2 junction FETs has a gain of 20 dB. The pass...
Found in Popular Electronics this circuit uses current components to control a pump in order to...