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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Voltage Regulator (CB5869E)
This circuit is from old documentation but can be applied to modern equivalent components. The...
Bicolor Kaleidoscope (CB4446E)
This LED light effects circuit is from 1988, but uses common components nowadays. The LEDs are...
Low Input Current Fast Adder (CB14126E)
We found this circuit in the 1994 Linear Applications Handbook from National Semiconductor. The...