Ripple Filter (CB6724E)

This circuit was found in a Delco 1965 publication. Transistors may be current equivalents according to the desired output voltage and current.

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Step Generator with SN75489P (CB24560E)
This circuit was found in the June 1978 issue of Radio Electronics magazine. The circuit is...
Level Indicator (CB3863E)
The slope of an object causes the sensor, a mercury switch to be triggered. The circuit activates...
Logic Drive of the 7805 (CB25236E)
This circuit for the logic control of the 555 in a power supply was found in the October 1989...