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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300 Hz Flasher (CB6800E)
Found in old documentation, this circuit uses special discharge lamps (neon) of the time. The...
Adjustable diode (CB24175E)
This circuit simulates a diode whose characteristics can be adjusted with a trimpot. The circuit is...
MCP14A0451 and MCP14A0452 4.5 A MOSFET Driver
May 2017 - Mouser Electronics already has Microchip's new MCP14A0451 and MCP14A0452 integrated...