Auto Bias for FET (CB6125E)

This configuration is from a 1964 US documentation valid for any FET. The range of power voltages depends on the application.

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Complete Timer (CB18775E)
This circuit has an LED indication of the timing progress, having been found in an old...
Infrared Vision (CB24310E)
This circuit is from a Radio Electronics magazine from August 1974. It used one of the first...
Nicad Automotive Charger (CB9538E)
This charger is powered by the car's 12 V socket, the number of diodes being calculated according to...