LED lichtorgan

321

03:57:21

This is a fun circuit that can be used at parties for example. The 4 LEDs flash on the beat of the music. The light organ responds to sound using a microphone.
T1 amplifies the signal from MIC. The sensitivity can be controlled with P1. T4 controls the LED's. These are preferably LED's with a high light intensity.
MIC is a condenser microphone. The circuit can be powered with a 9 V block battery.

MIC is missing in this simulation!!. it should be connected to the 100nf to gnd.

published 7 years ago

BillyT

7 years ago

Circuit appears to be non functional and incomplete.

crake

7 years ago

Not sure where T1 and the other T's are. Could you provide a link to the schematic?

lenzrulz

7 years ago

Ground the NPN bipolar transistor and check your LED resistors.

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