Found in a 1967 Electronic Design, this circuit can detect pulses as narrow as 0.2 us. Active components can be replaced with modern equivalents.
This circuit is from an 80's American documentation. The circuit uses components of the time which...
The purpose of the circuit of the figure is to control a servomotor remotely using a simple signal...
In the figure we have an input circuit for a receiver in which conventional transistors were...