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.

Single-phase power supply with diode bridge (CB24571E)
This non-regulated power supply uses a single secondary winding transformer. The secondary voltage...
LM4862 Sine Wave Oscillator (CB26114E)
Using a small incandescent bulb as a regulator, this Wien bridge oscillator produces a sinusoidal...
Audio inverter (CB12778E)
The figure presents a configuration that can be very useful for audio equipment designers. What...