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My Tesla Coil Project
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<blockquote data-quote="Einstein" data-source="post: 91567" data-attributes="member: 288"><p>Yes, I have an LC meter. And I did do calculations and compare them to the measured values. They were very close to each other. So I knew what to expect. Or at least I thought I did. This is feedback controlled. So it is always in tune. I thought that was a really cool idea. All my other Tesla coils have to be manually tuned for best operation. </p><p></p><p>But I didn't know walking close to a Tesla coil changes its resonant frequency. The sensor I made was showing me that on the scope. So basically you could cob together any coil arrangement you want. And the feedback control circuit will adjust to whatever frequency the coil wants to operate at.</p><p></p><p>Of course matching impedance's does give a better output. </p><p></p><p>Let me give you an example of something I tried this morning that allows the coil to run in continuous mode. I have a 1 meg resistor jumper wired in parallel with the capacitor and diode on the voltage side of the input. The coil starts up very easily. I removed the jumper wires and soldered the resistor in place. Now the coil wont start at all. I've never come across anything like this before. Common sense tells me to try connecting the resistor with wires the length of my jumper wires. I'm going to try that next. But this is like playing cat and mouse. Only I don't know what the rules are. I should probably right down the things I do that do make it work.</p></blockquote><p></p>
[QUOTE="Einstein, post: 91567, member: 288"] Yes, I have an LC meter. And I did do calculations and compare them to the measured values. They were very close to each other. So I knew what to expect. Or at least I thought I did. This is feedback controlled. So it is always in tune. I thought that was a really cool idea. All my other Tesla coils have to be manually tuned for best operation. But I didn't know walking close to a Tesla coil changes its resonant frequency. The sensor I made was showing me that on the scope. So basically you could cob together any coil arrangement you want. And the feedback control circuit will adjust to whatever frequency the coil wants to operate at. Of course matching impedance's does give a better output. Let me give you an example of something I tried this morning that allows the coil to run in continuous mode. I have a 1 meg resistor jumper wired in parallel with the capacitor and diode on the voltage side of the input. The coil starts up very easily. I removed the jumper wires and soldered the resistor in place. Now the coil wont start at all. I've never come across anything like this before. Common sense tells me to try connecting the resistor with wires the length of my jumper wires. I'm going to try that next. But this is like playing cat and mouse. Only I don't know what the rules are. I should probably right down the things I do that do make it work. [/QUOTE]
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