Additional Pull Pull (CB6119E)

This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of the signal obtained is shown in the diagram.

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Controlled Active Cycle Multivibrator (CB15535E)
Two inverters of a 4069B type CMOS integrated circuit form this oscillator which is characterized by having...
Difference Amplifier OP37 (CB19724E)
Raytheon's used operational amplifier is rare today, but the configuration can be adapted to use...
Battery charger (CB9127E)
Found in a radio amateur magazine of the 1980s, this circuit uses components that can still be...