We found this circuit in an old documentation. It can be elaborated based on modern components. The double transistor can be replaced by a matched pair.
This circuit allows the use of the multimeter to measure the dwell meter, a feature used in the...
This circuit controls the temperature of heating elements, which may be lamps covered with...
This circuit can be powered by a voltage of only 2.5 V. Next to the diagram we have the formulas...