The sensor of this circuit is a common diode, and the measured range is from -10 to + 40º C. The operational is a C3140 and the indicator instrument is a microammeter. The circuit is from 90's documentation.
The sensor of this circuit is a common diode, and the measured range is from -10 to + 40º C. The operational is a C3140 and the indicator instrument is a microammeter. The circuit is from 90's documentation.