An audio VU meter that will measure line level voltage in an audio system. Electrically, the two connections consist of a pass though, measuring the voltage across the tip and leave of one of the connectors.
2 of 6.35mm 1/4" Female Stereo TRS Audio Switched Socket Jack Connector Panel, available via Amazon.com (subsituted for the LUMBERG KLBPSS)
500uA 700 Ohm 55x55mm Analog Audio Amplifier SoundBox VU Meter Black
by Amico via Amazon.com
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