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Posts tagged LED and light circuit diagrams

Dancing LEDs circuit module

Dancing LEDs circuit module using tip31 4017 How to Make LEDs Dance ?

How to Repair the volume pot is dirty or worn?

How to Repair the volume pot is dirty or worn? Usually the speakers crackle crackle or rough voice when playing the The cause is dirty or worn pot, so that the audio signal does not have constraints in the rules. How to Repair the volume pot is dirty or worn, the rotating movement of a […]

Preamplifier circuit modules using transistor

Preamplifier circuit modules using transistor BC559, BC549

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