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9個(gè)LED組成的音頻電平表電路

作者: 時(shí)間:2011-03-15 來(lái)源:網(wǎng)絡(luò) 收藏

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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