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11.mp4demoMPEG-4 Video - 17.16 MB - 09/16/2025 at 17:34 |
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A Self-Charging LED Flasher By Burkhard Kainka
The circuit is very simple: an ultra-bright green LED, two 10-ΜΩ resistors, two 100-nF ceramic capacitors and a push-button switch. When you