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 oscillator was obtained in a 1960 transistor manual from Sylvania. The transistors are from...
This circuit was found in a 1994 documentation. Its signal is applied to any small integrated...
In the figure we have a two-stage amplifier circuit showing the voltages at various points. The...