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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Electronic ear (CB21671E)
This amplifier circuit for listening was found in a book by Hugo Gernsback from 1960. The...
Low dissipation biestable (CB6808E)
Obtained in a 1969 Ferranti documentation, this circuit dissipates only 2.2 mW with 4.5 V. The...
Emergency light (CB7044E)
This circuit was obtained in an old Elektor and can be adapted to use white power LEDs. The...