AC voltage probe (CB8185E)

This circuit for voltages up to about 20 V was found in a 90s Popular Electronics. The LED can be of any type or color.

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...