This circuit was found in a 1980s documentation. The circuit uses common components having an output of 10 Hz per centigrade degree of variation. The sensor is a transistor.
The National Semiconductor LM675 operational amplifier can provide up to 3 A of output current. In the...
The idea of this circuit is that when the device in SO1 is turned on, the device connected to...
This transistorized receiver was manufactured in the 1960s and distributed worldwide. The diagram is...