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Corona Balls

Eastern Voltage Research now offers a wide array of sizes of high voltage corona balls and spheres.  These are very useful for high voltage corona suppression in high voltage assemblies as well as spheres for use in static spark gap assemblies.  They are also very useful for creating stationary grounded targets for Tesla Coil, Van de Graaf generators, and other high voltage generators.

Corona balls are CNC machined with a non-polished finish and available in both aluminum and brass.

  • 0.25" DIA Brass Corona Ball

    0.25" DIA Brass Corona Ball - Package of 10

    0.25" DIA Brass Corona Ball - Package of 10 Available Thread:  6-32, 8-32, 10-32 Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike rods Safety...

    $15.00 - $39.99
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  • 0.375" DIA Brass Corona Ball

    0.375" DIA Brass Corona Balls - Package of 10

    0.375" DIA Brass Corona Ball - Package of 10 Available Thread:  6-32, 8-32, 10-32 Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike rods Safety...

    $15.00 - $49.99
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  • 0.5" DIA Aluminum Corona Ball

    0.5" DIA Aluminum Corona Ball

    0.5" DIA Aluminum Corona Ball Available Thread:  1/4-20 Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike rods Safety spark gaps All corona balls...

    $9.99 - $15.00
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  • 0.5" DIA Brass Corona Ball

    0.5" DIA Brass Corona Ball

    0.5" DIA Brass Corona Ball Available Thread:  6-32, 8-32, 10-32, 1/4-20 Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike rods Safety spark...

    $9.99 - $15.00
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  • 1" DIA Aluminum Corona Ball

    1" DIA Aluminum Corona Ball

    1" DIA Aluminum Corona Ball Available Thread:  10-32, 1/4-20 Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike rods Safety spark gaps All corona...

    $15.00 - $19.99
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  • 1" DIA Brass Corona Ball

    1" DIA Brass Corona Ball

    1" DIA Brass Corona Ball Available Thread:  6-32, 8-32, 10-32, 1/4-20 Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike rods Safety spark gaps All...

    $15.00 - $19.99
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  • 1.5" DIA Aluminum Corona Ball

    1.5" DIA Aluminum Corona Ball

    1.5" DIA Aluminum Corona Ball Available Thread:  1/4-20 (other threads available by request) Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike...

    $15.00 - $39.99
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  • 2" DIA Aluminum Corona Ball

    2" DIA Aluminum Corona Ball

    2" DIA Aluminum Corona Ball Available Thread:  1/4-20 (other threads available by request) Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike...

    $15.00 - $74.99
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  • 2" DIA Brass Corona Ball

    2" DIA Brass Corona Ball

    2" DIA Brass Corona Ball Available Thread:  1/4-20 (other threads available by request) Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike...

    $15.00 - $74.99
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  • 2.5" DIA Aluminum Corona Ball

    2.5" DIA Aluminum Corona Ball

    2.5" DIA Aluminum Corona Ball Available Thread:  1/4-20 (other threads available by request) Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike...

    $15.00 - $149.99
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  • 3" DIA Brass Corona Ball

    3" DIA Brass Corona Ball

    3" DIA Brass Corona Ball Available Thread:  1/4-20 (other threads available by request) Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike...

    $15.00 - $149.99
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  • 4" DIA Brass Corona Ball

    4" DIA Brass Corona Ball

    4" DIA Brass Corona Ball Available Thread:  1/4-20 (other threads available by request) Typical Applications: High voltage corona suppression (use on sharp bolts, etc...) Spark gap electrodes Grounded target electrodes and handheld strike...

    $399.99
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