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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Very Low Frequency Oscillator (CB19364E)
This oscillator with signal amplitude adjustment generates a 6.5 Hz signal with the values of the...
Small guitar amplifier (CB22150E)
We found this circuit for guitar training in an English documentation from 1989. The components are from...
Instrumentation preamplifier (CB6838E)
This circuit was found in a Hands On Electronics from the 90s. The circuit does not need a...