Multi-pulse trigger (CB21477E)

This circuit was found in a 1967 EEE. The transistors are from the time and can be tested equivalent.

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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...