Shift register (CB7175E)

Suggested by General Electric in 1980s documentation, this circuit makes use of PUTs that are not currently common components.

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Battery Low Indicator (CB4796E)
This circuit triggers the LED when the monitored battery voltage drops below 9 V for 12 V...
Instrumentation Amplifier (CB7825E)
Suggested by National Semiconductor, this circuit can be applied to almost any operational...
Doubler Crystal Oscillator (CB20664E)
This circuit was found in Radio Electronics from the 90s. The circuit can generate signals up to...