The circuit we show is part of an article that taught its complete assembly. The article is from the Radio Electronics magazine of August 1983. The thermometer was indicated for automotive applications.
Found in an Electronic Design from the 80s, this circuit generates a 500 Hz signal and can be used...
This circuit is from the 1972 RCA Linear Integrated Circuits Manual, but it can be made based on...
At each switch position, a diode is connected in series with the motor, thus causing a small...