9個(gè)LED組成的音頻電平表電路
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時(shí)間：2011-03-15
來(lái)源：網(wǎng)絡(luò)
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5 LED VU Meter kit is based on LB1409 IC from SANYO, which will indicates the volume level of the audio signal it senses
SUPPLY 12V DC @ 50mA
PR1 REF SET
PR2 AUDIO LEVEL SET
Schematic
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Parts List
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