Found in American documentation from the 90s, this circuit can be used as a shield with the replacement of the output optical coupler. The operational also admits equivalent.
This circuit was found in 90s Radio Electronics. The transistor can be any general purpose....
The circuit below shows how to obtain a monostable from a CMOS 4013 flip-flop. The actuation time...
This circuit is from Philips' 60s documentation. The circuit can be applied to modern operational...