Suggested by an American publication of 1964 this circuit is intended for the capture of signals from film tracks recorded by optical systems, common at the time.
This RF signal meter has a switch position that allows calibration and comparison of low intensity...
April 2017 - Texas Instruments bq51222 integrated circuit for chargers and other Qi wireless power...
We found this circuit in an American 1980s documentation. The circuit can be easily assembled in our...