This circuit was found in a 1980s Signetics documentation. The integrated circuit is from the era. The circuit enables coded matrix control via a toggle switch.
The critical component of this circuit is the transformar. We found it in an 1980s documentation....
The purpose of this circuit is to enable testing of transistors using a common multimeter. With the...
The TL431 integrated circuit consists of a programmable shunt regulator with an internal...