This circuit was obtained from a 1967 General Electric documentation. The circuit makes use of unusual SUS today. Other steps can be added to the circuit.
This simple circuit causes an LED to light up when the battery voltage drops below the voltage set in the...
Obtained from a 1967 documentation, this circuit uses transistors from the time. The galvanometer can be a...
The figure shows how to implement an alarm buzzer in an LM3914 to warn about crossing the scale...