SCR mechanical drive (CB6572E)

This contact or reed switch actuation was found in a 1964 Electronic Design. The circuit can be used with sensors and the triac is load dependent.

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PUT LED Flasher (CB16934E)
This LED signaling circuit uses a programmable unijunction transistor (PUT) as a relaxation...
Tone decoder (CB13936E)
This decoder filter was found in a 1975 documentation. The integrated circuits can be 741. The...
5 minutes timer 555 (CB25993E)
We found this circuit in the January 1997 Electronics Now magazine. The triac determines the...