FET Switch (CB6725E)

This switched filter was found in the 1969 documentation. The FET should be current-matched and eventually equipped with a heat sink.

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Three-Input AND Gate LM139 (CB14238E)
The presented logical configuration uses one comparator of the four existing in an LM139 or...
Synchronized Triac Switch (CB26127E)
This zero-crossing circuit was found in the 1989 Radio Electronics Experimenter. The Triac must be...
110 or 220V to 5V Power Supply (CB26064E)
This transformerless low-current power supply circuit was found in the August 1998 issue of...