This series and parallel sensor circuit was found in Popular Electronics from the 1990s. Any SCR can be used and the supply voltage depends on the load.
This circuit is from a 1967 documentation. It makes use of varicap and diode tunnel in addition to...
Author: Newton C. Braga Published:July 5, 2016 Formato:Book and e-Book Pages:...
This circuit is from an American publication of 1978. It can be assembled with modern transistors, since...