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Re: Golka coil specs
Subject: Re: Golka coil specs
Date: Wed, 14 May 1997 05:18:04 +0000
From: "John H. Couture" <couturejh-at-worldnet.att-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
At 06:47 AM 5/13/97 +0000, you wrote:
>Subject: Re: Golka coil specs
> Date: Tue, 13 May 1997 01:12:27 -0400 (EDT)
> From: richard hull <rhull-at-richmond.infi-dot-net>
> To: Tesla List <tesla-at-pupman-dot-com>
>
>
>At 12:17 AM 5/12/97 -0500, you wrote:
>>Subject: Re: Golka coil specs
>> Date: Mon, 12 May 1997 15:28:01 +1200
>> From: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
>>Organization: Wellington Polytechnic, NZ
>> To: tesla-at-pupman-dot-com
>>
>>
>>Hi Richard, all,
>>
>><snip of coil spec>
>>> I have several video tapes of Golka's system in action and have
>>> interpolated from prints take from the best video still frames and
>>> he was getting up to 30 foot sparks probably more. The reason he
>>> got them was the structure of the ceiling girder work attracted the
>>> sparks. Sort of an optimum height attractor. With a Toroid of
>>> proper proportions the system would have been awesome.
>>>
>>> We also have some closeups of his metering and in one run we
>>> calculate 200KVA from the meters. I still say he is the guy to
>>> beat for world record setting sparks. Unfortunately his approach
>>> was rather monkey see, monkey do. (Mimed Teslas 1899 system very
>>> closely.) His efficiency seems awfully low to say the least.
>>>
>>> Richard Hull, TCBOR
>>
>>I think it is a tribute to Greg Leyh's engineering skills that he has
>>scored 30' with 1/3 of the power Robert Golka was using. This remark
>>might be offbeat, but I have heard from a coiler I respect highly that
>>Golka's theoretical skills are somewhat lacking.
>> I'd also like to suggest to new list members/first time coilers
>>that you have some of the best coilers in the world present on this
>>list to help you with your projects (too many to name and does not
>>include myself).
>>
>>Malcolm
>>
>>
>Malcolm,
>
>I would agree wholeheartedly. I have Greg's coil on three or four of my
>tapes thanks to Jeff Mullins who sent in his video tape and shared a
>number
>of runs of Greg's fine coil with us. As a two coil system, I would say
>that
>Greg Leyh's system is the most efficient that I have ever seen.
>
>As to Golka's skills, I would agree and stated as much in a more polite
>way
>in my original post. Golka did most of his work before the "modern era
>of
>coiling" and was, again, just miming Tesla's 1899 work. Still, his
>sparks
>are the longest recorded sparks I have physical evidence of regardless
>of
>skill and power level.
>
>I have long said that as the spark length grows, the power required goes
>up
>incredibly and dramatically. This is regardless of skill level.
>Whether
>the builder uses a giant toroid, giant coil, or not. Anyone who is
>observant and is used to working over 5-8 Kva will agree with this. In
>low
>power coils, 300 watts per foot is a good rule of thumb. To about 20
>feet
>of spark, this rule ups to about 1KW/foot! Beyond 30 feet, another
>world is
>entered entirely. These rules of thumb assume better than average
>skills.
>
>
>Richard Hull, TCBOR
>
>-----------------------------------------------------------
To All -
I have talked to both Toby Grotz and Robert Golka and the Golka coil
characteristics were very close to Tesla's coil described in the
Colorado
Springs Notes. I have taken these CSN parameters and used them for a
JHCTES
computer printout shown in the Tesla Coil Notebook for those interested
in
the 46 parameters of the printout. The coil was used in the
tranformation mode.
Tesla mentioned in the CSN that the primary and secondary Q factors of
his
coil were equal. I found to my amazement when I ran his parameters thru
the
program that this was true. Tesla did not indicate how he came to this
conclusion. I must admit the printout could only be a coincidence. This
will
have to stand until someone develops a similar program to the JHCTES to
verify or find a different conclusion.
John Couture