MOSFET Amplifier (CB24981E)

This high-power circuit was found in July 1986, Radio Electronics magazine, requiring a high-current source. Equivalent MOSFETs can be tested

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Oscillator with AGC (CB6321E)
This circuit was found in a 1964 documentation. It shows how to achieve automatic gain control for...
Transmission line driver (CB6927E)
Using transistors at the time, this circuit was found in a 1967 Ferranti documentation. The...
Dual temperature and level control (CB9474E)
This circuit, which controls both the temperature and the level of a liquid in a reservoir, was...