vu meter circuit

Let's to build many VU Meter circuits with LM3914 – Electronic projects circuits小姐~我有事要告訴你...   I make a lot of amplifiers. Because I like to listen to music. And a VU Meter circuit is a circuit that I like it. In addition, it is used to display the power level of the audio, it also is beautiful. Many friends, would prefer same me. When you go to th...

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Amazon.com: NEW Ta7318p Vu Meter Driver Circuit Board Stereo Module Upgraded Edition: Electronics可以不要知道這個真相嗎!! Features: The signal input: driver board provides two kind of signal input methods:HIGH、GND、HIGH/LOW、GND、LOW,choose any one of them! (as in volume potentiometer, or the power output signal, take the pointer will swing control in volume) (1) LOW, GND, LOW:...

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