4W Amplifier (CB6205E)

This high gain circuit is from 1969 General Electric documentation. The transistors are of the time, but equivalent types can be tested.

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Video loop with controlled gain (CB8738E)
This variable gain circuit for analog video signals was found in a 90s Linear Technology...
CMOS and MOSFET Power Control (CB11893E)
In the figure we show how to connect a power MOSFET to the output of a CMOS function to control a power...
Super regenerative receiver (CB22526E)
This receiver using a FET appeared in a November 1957 Radio Electronics magazine. It is one of the...