This mixer with 20 dB gain per channel uses RCA's CA3048 integrated circuits. We found it in the July 1971 Radio Electronics magazine. The power supply does not need to be symmetrical.
This circuit uses a large surface diode to detect radiation (alpha and beta particles, in addition to...
This old circuit is from the era of analog televisions, serving for technicians to make...
Although it is a common configuration today, this circuit was taken from an old publication. The...