Found in American documentation from the 1980s, this circuit has a diode feedback. At the exit we have an indicator LED. The LM3900 is a transconductance operational amplifier.
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...