This circuit is from a 1968 Electronic Design. The components are from the era and the operating frequency is 60 MHz. No data on the coils is provided.
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...