Re: Polyurethaning the Seconday Problems

["Jim Lux" <jimlux-at-jpl.nasa.gov> (by way of Terry Fritz <twftesla-at-uswest-dot-net>)]

It may be heresy, but, if you were to coat the secondary with a static
dissipative coating (high resistance, but still a conductor) it might do a
lot to reduce static buildup without affecting the tesla performance.  Say
you used something with a resistivity around 1E7 or 1E8 ohms/square (you can
get up to 1E9 ohms/sq).  If you had a secondary that is 6" in diameter and
30 inches tall, the top to bottom resistance would be 30/(6*3.14)*1E7 ohms
or about 15-150 Megohms.  At a megavolt or so on the topload, this is a
current of  5-50  mA, which might be a bit high....  Ideas anyone?


-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Thursday, June 01, 2000 8:59 AM
Subject: Re: Polyurethaning the Seconday Problems


>Original Poster: "Robert Jones" <alwynj48-at-earthlink-dot-net>
>
>HI Bob,
>
>Yes I have,
>
>Leave a kettle boiling in the room,  or use a humidify
>
>or get one of the those so called ion generators (not a Tesala coil but you
>can use the power supply to build a tesla coil) or build one from your NST
>(not recommended for beginners)
>
>Regards Bob
>
>
>
>-----Original Message-----
>From: Tesla List <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
>Date: Wednesday, May 31, 2000 10:46 PM
>Subject: Polyurethaning the Seconday Problems
>
>
>>Original Poster: "Bob Berg" <berg_bob-at-hotmail-dot-com>
>>
>>I'm in the process of building my first 6" secondary out of pvc.  I made a
>>nice winding jig using a 1/2" drill / variace.  I can even use to spin the
>>pipe while sanding.  Now that I have a nice clean & smooth secondary I
>began
>>to coat it with polyeurathane while rotating it slowly.  The problem I'm
>>having is that the PVC/Poly is picking up a static charge and attracting
>all
>>kinds of dust and other air born junk.  I would like to make it a
>>contaimination free as possible. Does anyone have any suggestions to keep
>>the PVC free of static charge?  Maybee I can make a big Van De Graff with
>it
>>;-).
>>Thanks
>>Bob
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>>
>>
>
>
>