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Welding rods in static gap considered bad

Original poster: "Wim Bosma" <wbosma@xxxxxxxxxxx>

Welding rods in a linear static gap will get quite hot; much hotter than copper pipes. It should be tried only with a hefty blower, otherwise spark quenching detoriates: after a few seconds the HF output will drop. Construction of the spark cage will also be more difficult.
Regards, Willem, PA0TW

----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Friday, April 08, 2005 1:27 AM
Subject: Re: tungsten carbide magnetic?

Original poster: Lee Kohlman <lwkksw@xxxxxxxxx>

I am designing a static spark gap using 1/8" tungsten welding rods (yes, thoriated but to be used outside). I have access to phenolic fiberglass to support them. I have a total of 10 rods that I would like to lay parallel and still have some way to adjust gap length. Of course I would love to build a SRSG but that's too involved for now. Any suggestions?

Lee K.

Original poster: BunnyKiller

but do you need that extra diameter? I am using 1/8" dia pure welding tungsten no thorium ( and you know what power Im dealing with ;) ... and have very little wear and erosion problems.. plus the minimal diameter makes it easier on disc design and dwell time...

Scott D.