Found in American documentation, this circuit generates linear sawtooth signals using a constant current source. The output operational can be replaced by an equivalent.
This circuit is from an Elementary Electronics from 1977. It can be assembled with relative ease...
This circuit can be used with common drills connected to the 110 V network. With change of R1 and...
The purpose of this circuit is to intermittently start an aquarium air compressor. The intervals...