Lambda Diode (CB19852E)

This configuration elaborated with common junction FETs has a characteristic like that of tunnel diodes and can operate at very high frequencies.

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Logarithmic amplifier (CB9020E)
We found this configuration in a 70s American documentation. The circuit makes use of operational...
DC Amplifier MC33171 (CB14469E)
The circuit shown is powered by 5 V and was suggested by Motorola's Linear Databook of 1990....
Transistorized Intercom (CB17173E)
This simple transistorized intercom circuit was found in a 2000 documentation. It can be powered by a...