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Led-peakmeter

2014-12-12 19:20  
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The ?·circuit includes a peak detector that irrunediately drives the readout to any new higher signal level and slowly lowers it after the signal drops to zero. The readout is a moving dot or expanding bar display. The circuit can be expanded for a longer bar readout. Tapping five or more LED peakmeters into a frequency equalizer or series of audio filters should give a unique result.
Led-peakmeter

The bottom LED remains on with no signal at tbe input, thus providing a pilot light for the unit.



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