We found this version of the automotive tachometer in a 1980s publication. Variations from other sources appear elsewhere in this section. The indicator is a 0 to 1 mA milliammeter.
Found in Intersil documentation from the 90s, this thermometer uses an analog indicator. The...
The integrated circuit used in this charger is not very common today. The circuit is from...
The purpose of this circuit is to determine from the position of the float which of the pumps...