Originally this circuit was created to produce synchronism pulses in TV cameras SSTV (Low scan frequency), however it can be adapted for other purposes. The integrated circuits are common TTL.
This circuit for triggering a CMOS gate without rebounding was found in the October 1974 issue of...
This generator is more complete than the previous one, being able to generate pulses as indicated...
This 1975 circuit for automotive applications replaces the mechanical vibrator found in old cars...