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Registered Member #50
Joined: Thu Feb 09 2006, 04:07AM
Location: Vernon, B.C, Canada
Posts: 324
I've seen in quite a few coil primaries that use 1" X 0.000whatever (thin) copper as the coil instead of copper tubing. What is the name of this material and what is it used for? I described it to my local home depot man and I got a .
Registered Member #477
Joined: Tue Jun 20 2006, 11:51PM
Location: Seattle, WA
Posts: 546
"Busbar" maybe? Check eBay. There is such a thing as copper tape, but it's far too thin (from what I've seen). Another option, if you're after this sort of thing, is to squash some soft copper tubing flat. A friend of mine works in a metal shop and did this for me using a hand-operated system of rollers (not sure what it's actually called) generally used for forming strips of metal. Worked great and produced a very handsome result.
Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
Home depot sells copper roof flashing. Its 6" wide, but you could cut it if you were very motivated. Otherwise, your best bet would be some place online. Ive found it on ebay from time to time. You might get lucky at a metal scrap yard or something, but i dont know much about those types of places.
There is also bronze strip that can be bought here:
Terry Blake uses it:
Seems to work fine, despite being less conductive than copper.
Registered Member #50
Joined: Thu Feb 09 2006, 04:07AM
Location: Vernon, B.C, Canada
Posts: 324
Thanks for the help, I'm probably going to just go with some copper tubing based on the fact that copper stripping seems alot harder to get, but home depot only sells the tubing in lengths of 25'. A 3 inch coil (276.75Khz tapped between 8 and 9) I might just get away with that....
Registered Member #15
Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
Actually, most of the primaries wound in this fashion use Aluminum flashing which is used in roofing. Readily available, cheap, and works extremely well.
Registered Member #76
Joined: Thu Feb 09 2006, 10:04AM
Location: Hemer, Germany
Posts: 458
for my primaries in sgtcs i only use those brass strings or brass sheets or whatever you call it. there is a huge metal factory in our city and if you have some connections you get most everything you want. i got around 50metres of those brass string dirt cheap and it works extremly well and is simple to use. normally it is used for stamps to make cable connectors etc
Registered Member #1157
Joined: Thu Dec 06 2007, 12:11PM
Location: Houston, TX
Posts: 307
I know this thread is kind of old, but I just found 50 ft of .5" x .032" copper strip and plan on using it on my new SGTC as my primary. Looked at Terry Brooks "Huge Tesla coil" and was wondering. . . Using Teslamap or some other program, is it possible to figure the tuning point?
I'll look into it a little more, but if you have used this and know the best way to find the tuning points, please share.
Thanx,
Hold on, I guess if I would have read it all the way, I would have seen that Terry used Wintesla. Lemme check that out before I get beat up by you guys. . .
Registered Member #316
Joined: Mon Mar 13 2006, 01:30PM
Location: Marietta, GA
Posts: 212
I use brass weatherstrip from Home Depot. As I recall, it comes in rolls of about 20 feet and costs about $6 a roll. I just solder two pieces together and then make a coil using adhesive foam tape to hold turns apart (like Terry Blake's approach). It's perfect for putting a lot of turns in a tight space.
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