This circuit was found in an American 1980s documentation. It analyzes the exhaust gas of a vehicle using a special sensor. The indicator is a milliamperimeter.
The circuit shown is from the Linear Applications Handbook and the maximum frequency is in the...
This 100 kHz crystal oscillator uses 7404 to generate square signals. We found it in a Popular...
The circuit shown is a reference of -10 V with a maximum current of 50 mA obtained from the Linear...