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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Vehicle alarm (CB20627E)
This car alarm was obtained in a Signetics documentation from the 1980s. The circuit uses the 555...
Zero Frequency VCO (CB24870E)
The frequency of this circuit can be varied from zero. The circuit uses the CMOS 4046 and was...
fgtrTTL Binary Counter (CB13420E)
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