Using L144 operational, this circuit applies to other equivalent operational. The circuit is from a documentation two years 90. The power supply must be symmetrical.
This heartbeat sensor circuit was found in the July 1992 issue of Radio Electronics magazine. The...
We found this circuit in the 1982 SGS integrated circuit manual. The integrated circuit is not...
This TTL pulse stretcher or stretcher was found in a 90's EDN. The time constant R x C1 determines...