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I have a led chaser i built from a youtube video. It works perfectly from a 9v battery but when i connect it to a 9v 1a power adapter it malfunctions. The leds blink out of sequence and some just flicker. If left long enough it burns out the 4017 ic. The 4017 is triggered by a 555 ic and it appears to keep working. |
2 hours, 15 minutes ago |
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