This circuit also appears elsewhere on this site, obtained from other sources. This is an 80's American schematic book. Instead the lamp can be used white high-brightness LEDs.
This circuit has very high input impedance and a differential input. The gain is 1,000 and the...
This circuit was found in a French magazine Toute LÉlectronique from 1978. Transistors are not...
Author: Newton C. Braga Published:Aug, 2016 Formato:Book and e-Book Pages:...