This circuit was suggested by an Electronic Design from the 90s. Its purpose is to detect resistance relationships in circuits with resistive sensors for control purposes, by firing a relay.
In this circuit we have the voltage multiplied by 5, obtaining between 50 and 80 V output when the...
We found this circuit in a 1962 publication by General Electric. The circuit applies to common...
This timer for a few minutes was originally indicated for photographic applications. We found it...