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Re: Golka Photos
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- Subject: Re: Golka Photos
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Wed, 06 Apr 2005 08:08:28 -0600
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Original poster: "Harold Weiss" <hweiss@xxxxxxxxxx>
I might have said this before, but I have had the same happen. My 15" coil
in the driveway could do around 2-2 1/2', but when I used it on stage, it
had an extra 4' of hight above the concrete with streamers hitting the 4+
foot mark. The same may have happened to Bob's toy. Also coil tunning can
vary from day to day. My older 6" liked to vary over about 3/8 of a turn
for best spark length.
David E Weiss
Original poster: Terry Fritz <teslalist@xxxxxxxxxxxxxxxxxxxxxxx>
I have a small coil I recently took to a science center. I stupidly had
it on the school gym's tile over concrete ground and noted to "all" that
it was not running well!!! Folks here on the list that saw the pics
reminded me that the concrete floor it was on was very close and was
probably killing its power... I latter re-tested all of the coil's parts
and they were fine.... Running thousands of high currents volts next to
odd "ground" surfaces is a "bad thing". Perhaps Leadville's ground is not
called "lead" for nothing ;-))
20 years latter.... We can "detect and find" such things...
Note to all to be careful of objects next to your primaries!!!!!!!!!!!!
At 10:34 PM 4/4/2005, you wrote:
That is a good point about the coil to ground, I asked about
inductance per winding, etc, Bob said he had that all down, would look
for it for me. Also, he did measure Q I found out tonight, he had at
some point decent meters, other coilers that visited had some as well.
He had built it to as close as the CS coil because he wanted to duplicate
conditions to see if BL was what Tesla had seen. But you are right Terry,
the earth conditions at CS sure could have been different.
When Bob ran this out in the open on the salt flats, he said it never ran
as well as it later did in the hanger.
By the way, in pictures yet to be scanned, one can see the curve of the
hanger roof better and the coil size ratio.
The very top of the hanger, which Bob measured with a plumb line, to the
floor, was 95 feet.
So that is the highest point above ground, that being the top tin skin of
the hangar. The Z braced supports which follow the roof curve were about
6 feet; They used to have to climb up those and pull an overhead light to
them, for bulb changing.
I also see I must re-scan the posted pictures, I think the transformer in
a desk light may have bothered the scanner as there are distortions not
on the original pictures.