We found this circuit in a 1980s documentation. Equivalent components can be used. The circuit senses temperatures in the range of 0 to 50º C and uses a transistor as sensor.
E) The interesting thing about this circuit found in a 1985 English magazine is that it controls the...
Found in a 90s Popular Electronics, this circuit uses general-purpose transistors, serving to...
You can measure capacitances across a large range of values using the AC Power line frequency as...