LM3914 LM3915 10 LED VU Meter Sound Level indicator Board – PCB only

Supply Voltage Range – +9 volts to +18 volts, +12 volt recommended

Battery Operation – can be run using +9v or +12v Battery.

Signal Input – Speaker Output to be connected parallelly in to Sig. IN connector, Adjust RV1 to required level.

LED’s – 10 LED’s of 3 mm or 5 mm can be used in this board.

Bar Type Display – Pin 9 is connected to positive supply, Bar mode active.

Compact size – PCB size 38 mm x 72 mm ( 1.5 inch x 2.8 inch ) PCB thickness – 1.6mm.

Low cost – This VU meter board can be made in a fraction of cost compared to similar boards available in market.