Tuned active antenna (CB8412E)

Found in a 90s Popular Electronics, this circuit allows to select the operating ranges between short waves and VHF. MOSFET is uncommon today.

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25 W phase control (CB8334E)
This 25 W phase photo control was found in a 1965 General Electric publication. The circuit uses a...
Variable Gain Video Amplifier (CB14145E)
The circuit below uses common JFET transistors, which can be the BF245 or MPF102 amplifying video...
VHF and UHF Line Amplifier (CB16835E)
This circuit was found in a 1997 documentation. It works as a booster for VHF and UHF signals...