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.

SST OXY Flex Oxygen Sensor
SST OXY Flex Oxygen Sensor The purpose of this SST sensor is to measure oxygen level in enclosed...
Auto Power Off for Micro (CB16576E)
The basic idea of this 1988 circuit is to use a signal called REMOTE existing in some types of...
Sequential Control 4017 (CB11283E)
With each touch on S1, an output of 4017 is activated, this in sequence 3, 2, 4, etc. These...