100 mA regulator (CB21168E)

This 2-terminal regulator was obtained from a 1990s National Semiconductor manual. The components admit modern equivalents.

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...