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For the term "kapagen bifilar coile".

Magnetic Resonance Amplifier 6: Effect of External Magnetic Field

Please watch the earlier videos in this series first. Here I have the system tuned so that the applied magnetic field from the external magnets moves it closer to being in resonance at the…

Joule Thief: Basic Circuit, Upgrade to 24 LEDs, 1 to 1 Toroid Winding

The basic circuit using the 2n2222 metal can transistor, with a few alterations from the “instruction” video, to show the next steps in development. I’ve tested a few different coils and this 1::1 toroid…