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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Light Controlled Monostable (CB21018E)
We found this circuit in an old Popular Electronics. The circuit is experimental, driving an LED...
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This circuit was suggested by Texas Instruments in a 1968 publication. The transistors are of the...
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Suggested by the National Semiconductor in 1980s documentation, this circuit uses components from the...