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I recently made a slayer exciter by using the circuit diagram attached. But my exciter is not working and I have a question.

Is primary coil supposed to be wound the opposite direction as second coil?

The LED in the circuit is just blinking.

I used 12v instead of 9, 450 turns instead of 275 and 6 turns instead of 3.

circuit diagram

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  • \$\begingroup\$ So you've made a bunch of changes to a circuit you don't understand, and you're surprised when it doesn't work? \$\endgroup\$ – duskwuff -inactive- Mar 3 '18 at 20:28
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    \$\begingroup\$ should be opposite direction \$\endgroup\$ – Jasen Mar 3 '18 at 20:32
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    \$\begingroup\$ As @Jasen mentioned, reverse your primary connections. Also the high-voltage output must have some current flow or the circuit will not work. \$\endgroup\$ – Sparky256 Mar 3 '18 at 21:16
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How do you know it's not working? I thought mine wasn't but when I looked at the output with an oscilloscope, there was a 300 volt Peak-to-Peak very clean sine wave. Not enough to draw sparks and light up globes. Now working on a coil that's 100 mm diameter and 300 mm long. I used a 2N3055 transistor on a heat sink and a 12 volt supply.

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    \$\begingroup\$ I'm not sure if I understand that other comment about the high-voltage output requiring some current flow. Mine has nothing connected and produces a faint corona with nothing connected to it.So, it's obviously working. \$\endgroup\$ – Kevin the Truck Feb 2 '19 at 9:35

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