This circuit is from an American 80's documentation. The integrated circuit is from the time and the sensor consists of a smoke chamber measuring its transparency change.
This circuit is part of an oscilloscope project with the PC. Its purpose is to record a peak in a...
With this circuit it is possible to control a relay up to 100 mA with an extremely low input...
This circuit amplifies VHF signals in the two-meter range and is very critical, especially...