Unijunction transistor sequential timer (CB21400E)

This circuit was found in Motorola documentation from 1968. Transistors can be modern equivalents, just like SCRs.

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LM3909 2Hz Fast Flasher (CB25424E)
This circuit was found in the January 1992 issue of Radio Electronics magazine. The capacitor...
Emitter Coupled Multivibrator (CB18238E)
This different than configurable configuration uses transistors coupled by the emitter. The...
Dalayed Turn-On Gate (CB123)
This circuit can be used to add a delay to a logic signal as shown by the input and output...