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Toroidal Terminal For Tesla Coil & HV Uses: 20"

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Product Description

For coils up to 850kV, 20" diameter x 5" height spun aluminum with ¼" center hole.

Shipping: this is a bulky item and shipping may exceed the website calculation. Please contact us for the shipping cost to your location, or we will let you know after your order has been placed if any additional shipping is required.


These are spun aluminum of grade 1100-O (99% pure aluminum), with a welded seam that has been smoothed and polished and cannot be seen. Aluminum wall thickness is approximately 1/16" (so the flat central area is about 1/8" thick, for example). Excellent for Tesla coils requiring a capacitive terminal and high voltage DC generators.

Our laboratory has the tooling and now offers many sizes of toroidal terminals: have a look at our PDF sheet to see other available sizes from 3 to 98 inches!

Quantity discounts available -- contact us for more information.

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