Locked Triac (CB7238E)

This is a circuit found in a 1970's Radio Electronics. The circuit works with virtually any triac that must match the load.

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a Photodiode Amplifier with Trigger (CB4579E)
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Diode Coupled Multivibrator (CB19521E)
This unusual configuration, but which has already been explored in other articles, uses diodes in the...
Proximity Switch 567 (CB15008E)
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