Push pull amplifier (CB21941E)

Using a pair of CK722s, this booster step of a few milliwatts of power was obtained in a 1960 Gernsback publication.

800 Hz Sinusoidal Oscillator (CB13572E)
This circuit is from an old publication from 1977 and can be implemented with more modern...
Gain 100 buffer (CB9558E)
This basic buffer circuit can be implemented with other operational amplifiers. The circuit is...
5V x 3A Regulator (CB5468E)
This circuit can be applied to other 3-terminal regulators and equivalent transistors can be used....