modified 8 years ago

Mic transistor switch

02:03:18

the ac represent the mic
can someone help me to modify 
1. I hope the light to turn on at constant
2. I hope when there is higher amplitude(more louder the sound) the bulb is brighter.
3. thanks 

published 8 years ago

soonk

8 years ago

modify either 1 or 2 or both will do..thx

lmccoig

8 years ago

Add a second push button on microphone key to turn on indicator lamp and forget transistor.

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