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Registered Member #54484
Joined: Sun Feb 15 2015, 06:18PM
Location:
Posts: 46
Hazmatt_(The Underdog) wrote ...
I used to follow what everyone else said too, until I realized I could get better results by leading in my own way and doing my own thing.
After this base is done, I will match the secondary to the primary, "by working backward", I get better performance that way.
Matt
Well I "learn" backwards. I always start at the top and work my way down. Been learning like this sense I was a kid. Now I want to learn about Tesla Coils so I'm building one and will learn the rest as I go. I'm very intrigued by your design. I'm trying to understand how the inductance and resonance will work with so little turns and so much spacing. I would really appreciate if you could explain, it will help me learn. I for one have never been much for following anyone's lead either unless it was necessary so, like you, I will eventually break off into my own designs. Also the caps you're concerned about are 2100v microwave oven caps and it's just the A/C conditioner for the low voltage side of the NST. TeslaMap suggests 166uF for PFC and those 2 in parallel read 165uF on my meter.
Registered Member #135
Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
The little red caps on your filter are rated for 2100V? Wow!
With the spacing, the tank inductance will work just fine. It's the combination of L and C, as you already know, that does the trick. I've got it all matched for the 15/60 NST, I just have to figure out what the Fo is. If it's real low because Lpri is low, I can offset that with Ctopload to lower the Lsec resonance point.
The main goal is always energy transfer. This system should store about 2 Joules of energy, which is pretty decent, and should give me a 5 foot spark. The large spacing should help to not over-couple the secondary and still produce a fairly strong field that envelops the bottom portion of the secondary. Also with heavy connections, I will avoid a lot of loss. Any wire I have to use is 10 AWG silver teflon wire, which is more like rope!
You can't see it in this photo, but this is the first coil with a hairpin tuner. The travel is only about 20", but that should be enough to give me what I need for fine tuning without the high losses of a tap and tap lead.
Registered Member #54484
Joined: Sun Feb 15 2015, 06:18PM
Location:
Posts: 46
Hazmatt_(The Underdog) wrote ...
The little red caps on your filter are rated for 2100V? Wow!
I thought you were referring to the PFC caps in the ac conditioning circuit. The caps on the terry filter are 0.0033uF 1600V Metal Polypropylene and here is the rest... (2) 100 watt 1K ohm Dale resistors (16) MOV's 1800V (Metal Oxide Varistor) (12) 10M Ohm 1/2 Watt 5% Resistors
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At the assembly stage. Looking for feedback (no pun intended)
