This circuit is from 1964 documentation but can be easily implemented based on current components. Input waveforms and detection are shown next to the diagram.
This circuit is from 1977 documentation, and high current equivalent transistor must be used. The...
This trigger uses two switching transistors that can still be found with some ease. The circuit is from...
This circuit uses CMOS integrated circuits and can operate with CMOS logic from 3 to 15 V or TTL...