Found in American documentation from the 90s, this circuit triggers a buzzer with a Sonalert-type oscillator when the temperature of the sensor reaches a certain value set in R2.
The gain of this amplifier is 10 times and the excursion to the output voltage is 6.0 V (peak to...
Originally, this 2000 documentation circuit was created to operate as a sensor for the parallel...
This high sensitivity circuit was found in the July 1992 Radio Electronics magazine. The circuit...