This simple three-LED sensor uses an NTC at the input. The circuit is based on an uncommon integrated component today. We found it in documentation from the 80s.
This electronic ignition circuit uses a new component at the time, the Ignistor, a transistor with...
This timer is characterized by its simplicity and the fact that it does not need a relay, being...
We found this circuit in an English documentation from 1968. The circuit draws a number from 1 to...