This circuit uses components of the time. We found it in a 1968 US documentation. The delay is 100 ns and the input impedance is 1 k.
This is one of the possible receivers for the CB4582E transmitter. The circuit is from 1995...
The purpose of this circuit, which we found in an August 1973 Radio Electronics issue, is to...
This circuit was obtained in an English publication of 1977. The operational is of the type with...