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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Battery Low Indicator (CB4796E)
This circuit triggers the LED when the monitored battery voltage drops below 9 V for 12 V...
REF33x Texas Instruments Voltage References
Texas Instruments REF33x Voltage References can be obtained from Mouser Electronics. These small...
NAB Equalizer (CB7307E)
This circuit was found in an American audio documentation from 1968. The configuration can be...