This circuit converts a constant input current intensity into a voltage given by Vo = -R x I. T1 must be equal to R. The operational admits equivalent.
This circuit is from a 90s American documentation. The circuit can use complementary pairs...
This triac circuit turns on a load after a time of 8 to 80 seconds adjusted by potentiometer R7....
The circuit used is the 4093 configured as an inverter in this application from Radio Electronics from...