In the figure we have a simple thermometer with NTC, using an analog current indicator. The adjustment is made in the trimpot and the power is done by batteries.
The operational of this amplifier can be the 741 and the resistors R1 and R3 are of 10 k. R2B is...
In the figure we have a line receiver circuit (twisted pair) with the possibility of...
The circuit presented was developed to turn off the ignition of any vehicle by ringing a cell...