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.

HMI Smart Displays Mikromidia (COM063E)
August 2016 - It can be obtained from Mouser Electronics Mikromidia of the MikroElektronika...
CMOS Voltage Doubler (CB1241E)
Needing a higher output current in a voltage doubler, we can connect inverters in parallel, as...
Digital Voltage Indicator (CB25335E)
This indicator with the integrated circuits CA3162E and 3161E was published in the July 1990 issue...