5 to 60 kHz FM Demodulator (CB25782E)

This 555 IC circuit was found in the November 1994 issue of Radio Electronics magazine. The circuit can be powered by voltages from 12 to 24 V.

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FET Switch (CB6725E)
This switched filter was found in the 1969 documentation. The FET should be current-matched and eventually...
In use telephone indicator (CB8665E)
This circuit was found in a 90s Electronics Now. The circuit can use a TIC106 for the SCR....
Irrigation Pump (CB18084E)
This circuit is from 2005 documentation. It automatically starts an irrigation pump when the...