Synchronized Triac Switch (CB26127E)

This zero-crossing circuit was found in the 1989 Radio Electronics Experimenter. The Triac must be controlled according to the load.

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Common Emitter PNP Relay (CB25611E)
This relay shield was found in the October 1993 Electronics Now magazine. The circuit is powered by...
Programmable zener (CB9159E)
The circuit shown was found in Intersil documentation from the 90s. The formula allows to...
High Sensitivity Comparator (CB12525E)
We present a comparator with signal resolution in the submicrovolt range. The matched pair of...