Re: A very little coil

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Skip Greiner by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sgreiner-at-wwnet-dot-com>

Hi John
I will try to get a measurement on the actual power input and post it.

Thanks to John and all for your comments
Skip
-----Original Message-----
From: Tesla list <tesla-at-pupman-dot-com>
To: tesla-at-pupman-dot-com <tesla-at-pupman-dot-com>
Date: Sunday, July 22, 2001 4:48 PM
Subject: Re: A very little coil


>Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<FutureT-at-aol-dot-com>
>
>In a message dated 7/21/01 8:49:42 PM Eastern Daylight Time,
tesla-at-pupman-dot-com
>writes:
>
>> Original poster: "Skip Greiner by way of Terry Fritz
<twftesla-at-qwest-dot-net>" <
>> sgreiner-at-wwnet-dot-com>
>>
>>  I picked up a 6kv -at- 1ma DC supply. I have built a small coil with a
couple
>> of
>>  screws for the break. The discharge from the top terminal is about 1.5"
>and
>> I
>>  can draw sparks about 2" long with a screw driver. The discharge sparks
are
>>  very fine and must be viewed in subdued light.
>>  Has anyone had experience at this power level...6w? Are these discharges
>> about
>>  right or can I do better. Will appreciate all comments.
>>
>>  Thanks   Skip
>
>Hi Skip,
>
>My formula suggests 4" sparks for 6 watts.  I've never done any work
>at that power level though, and I don't know if the formula will
>work properly at that power level, but I wouldn't be surprised if it does.
>If the cap is very small, the coil may be running at a rather high
>breakrate, and that will tend to shorten the sparks, for a given
>input power.  I wonder too if the coil is really drawing 6 watts
>despite the power supply rating?  (maybe it's drawing less?)
>
>John Freau
>
>
>