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Re: questions on first tesla coil



Original poster: "Langer Giv'r" <transworldsnowboarding19@xxxxxxxxxxx>

Hi, i am building my first tesla coil and i have some questions i need to ask before i can begin... first off... i am planning on using a 9KV 30mA NST for power supply, MMC at 0.009mF 15KV for caps, 12 turns on primary and 900 turns on secondary.
1) Does this look okay or anything need changin?
2) Do i need a filter for my NST?
3) Im too poor for a variac what should i do?
4) What does a safety spark gap do?
5) what specs of caps should i use for MMC, like how many rows and such


Thanks a lot
Daniel from Canada


From: "Tesla list" <tesla@xxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: Terry Filter On Two NST Grounds?
Date: Wed, 05 Oct 2005 00:11:17 -0600

Original poster: Terry Fritz <vardin@xxxxxxxxxxxxxxxxxxxxxxx>

Hey Miles,

If your are just charging "one" primary cap, then you "should" just need "one" filter. I am not sure how you are wiring the outputs of the NSTs...???

I would "guess" that the inner legs off the NSTs would be at ground too???

Cheers,

        Terry


At 07:12 PM 10/4/2005, you wrote:
Fellow Coilers,

My NST array is composed to two "layers". The bottom layer has four 7.5KV
30ma NSTs, cheap on e-bay, wired in parallel, with their cases all wired
together. This is NST ground 1. The top layer has four 7.5KV 30ma NSTs,
cheap on e-bay wired in parallel, with their cases all wired together. This
is NST ground 2. The case grounds from layer 1 or from layer 2, and from
mains power are NOT connected together. Do I need two Terry Fritz Filters,
one for the top, and one from the bottom? I really want to just set this one
off and see what it is going to do, but I will risk all the expense and time
of building these very large, very hard to wire, transformer stacks.

Please Advise,

Miles Waldron


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