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Audio Spectrum Analyzer Circuit

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CD40XX integrated spectrum analyzer circuit based on the LM3914 display driver and used a total of 100 projects have two versions of Led pcb, diagrams, etc. The frequency list. There are all the files.

Spectrum Analyzer Circuit test

Audio Spectrum Analyzer Circuit 100 leds led spectrum analyzer 120x120 Audio Spectrum Analyzer Circuit leds analizor savszurok4 foliaoldal 120x120 Audio Spectrum Analyzer Circuit led spectrum analyzer 120x120

Audio Spectrum Analyzer Circuit savszurok4 alkatreszoldal 120x120 Audio Spectrum Analyzer Circuit spektrum analizator kep 120x120 Audio Spectrum Analyzer Circuit spektrum analizor led bar 120x120

Frekvencia (Hz) R1 (Ohm) R2 (Ohm) R3 (Ohm) C (F)
30 10k 12k 47k 330n
60 4,7k 10k 20k 330n
120 2k 15k 9,1k 330n
250 10k 39k 47k 33n
500 4,7k 43k 22k 33n
1000 2,8k 6,8k 11,4k 33n
2000 1,2k 6,8k 5,6k 33n
4100 6,2k 27k 27k 3,3n
8200 3k 10k 15k 3,3n
16400 1,3k 47k 6,8k 3,3n

Source: http://www.freeweb.hu/pa-elektronika/spektrum_analizator.htm Audio Spectrum Analyzer Circuit pcb shematic Alternative link: audio-spectrum-analyzer-circuit.rar alternative link2 alternative link3 alternative link4

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