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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
also another source is dead fridge compressors.
you may be able to obtain wire from a defunct microwave oven fan or even a clock, Poundland ones often use unpotted windings for cheapness.
If all else fails you can get good sized spools of wire from CPC or Farnell, and try Scientific Wire Company if its specialised (got 44 gauge SS wire here) -A "Bother" said Pooh, as he tested positive for Vidiian Phage...
Registered Member #1083
Joined: Mon Oct 29 2007, 06:16PM
Location: Upland, California
Posts: 256
I got my 22awg wire for my 4.5" from Parawire.com. They have really good prices and a good range of quantities. Although they don't sell it for electrical purposes, it works as good as any high-tech magnet wire i've found. Just ask for extra heavy build insulation, and you're good to go. Plus, they have all kinds of cool colors ;) No need to pay for some elaborate multi-coated polyvinyl Formar magnet wire when you can get cheaper stuff that works just as well for amateur uses.
Registered Member #2478
Joined: Mon Nov 23 2009, 03:24AM
Location: Texas A&M University
Posts: 47
In theory, aluminum wire would be superior, because of the larger radius of curvature and lower cost. I haven't seen anyone selling it in small volumes, though, and soldering it might be difficult.
Registered Member #2628
Joined: Fri Jan 15 2010, 12:23AM
Location:
Posts: 627
Russell Haley wrote ...
In theory, aluminum wire would be superior, because of the larger radius of curvature and lower cost. I haven't seen anyone selling it in small volumes, though, and soldering it might be difficult.
yeah, I never had much luck soldering anything made from aluminum, I use ring terminals for securing an aluminum wire when possible, either that or I solder fat "tacs" on a board to hold the wire in place, even with flux, aluminum is really stubborn.
I preffer to use copper, as it is more conductive, and easier to solder, but an Aluminum wound tesla coil with a silvery shine to it will look cool.
Registered Member #2463
Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
There are inductive applications where 'distributed' resistance is used and copper widings and non copper windings are mixed. Copper reacts with the varnishes from the day is is coated on, and contines until the insulation fails and the thing burns out. Aluminum has a non conductive oxide on it and is not as reactive to varnishes. Most of the electric current in the world flows over aluminum. In small motors, where space allows aluminum windings will outlast copper if you can afford the heat loss. Electricians use a compound on aluminum wiring when splicing or terminating it.
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