Neon Fuse Blown Monitor (CB24104E)

This circuit was found in the January 1971 Radio Electronics magazine. It keeps the light flashing if the fuse blows.

Solar Frequency Standard (CB23936E)
This crystal oscillator was found in the February 1968 issue of Radio Electronics magazine. Its...
Xenon Flasher (CB6941E)
This xenon flasher version for the power grid is from an 80's EDN. The circuit uses a folder and a...
Temperature Controller (CB6017E)
This circuit is from a factory documentation (National Semiconductor) of the 80's. The power...