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Re: ribbon vs. tubing
I was thinking in terms of the proximity effect.
Does not greater self capacity increase the
proximity effect of a coil? Thinking of it like
a reactance would it not increase the impedance
of the primary thereby limiting the di/dt attainable?
Barry
----------
|From: "tesla-at-poodle.pupman-dot-com"-at-PMDF-at-PAXMB1
|To: Benson Barry; "Tesla-list-subscribers-at-poodle.pupman-dot-com"-at-PMDF-at-PAXMB1
|Subject: Re: ribbon vs. tubing
|Date: Thursday, December 05, 1996 3:00AM
|
|<<File Attachment: 00000000.TXT>>
|> |Subject: ribbon vs. tubing
|> |Subject: ribbon vs. tubing
|
|From MALCOLM-at-directorate.wnp.ac.nz Thu Dec 5 00:22:32 1996
|Date: Thu, 5 Dec 1996 07:45:28 +1200
|From: Malcolm Watts <MALCOLM-at-directorate.wnp.ac.nz>
|To: tesla-at-pupman-dot-com
|Subject: RE: ribbon vs. tubing
|
|Hi Barry,
| Self capacitance in the primary doesn't matter as it is
|completely swamped by the discharge cap.
|
|Malcolm
|
|> In one of Richard Hull's video tapes there
|> was a primary made with ribbon. The sharp
|> edges seemed to attract an inordinate
|> amount of strikes from the secondary.
|> When it was changed to copper tubing the
|> secondary streamers stopped striking it.
|> The self capacity would seem to be higher
|> also. Richard's small coil uses ribbon
|> for the primary and seems to work very well
|> but it does not produce sparks big enough to
|> strike the primary. I have always had good
|> results with copper tubing. It is also good
|> for the electrostatic design of the TC.
|> Barry
|>
|>
|> ----------
|> |From: "tesla-at-poodle.pupman-dot-com"-at-PMDF-at-PAXMB1
|> |To: Benson Barry; "Tesla-list-subscribers-at-poodle.pupman-dot-com"-at-PMDF-at-PAXMB1
|> |Subject: ribbon vs. tubing
|> |Date: Monday, December 02, 1996 2:42AM
|> |
|> |<<File Attachment: 00000000.TXT>>
|> |
|> |From chip-at-poodle.pupman-dot-com Sun Dec 1 22:30:23 1996
|> |Date: Sun, 1 Dec 1996 22:02:12 -0700 (MST)
|> |From: Chip Atkinson <chip-at-poodle.pupman-dot-com>
|> |To: Tesla List <tesla-at-poodle.pupman-dot-com>
|> |Subject: ribbon vs. tubing
|> |
|> |Greetings,
|> |
|> |I have started making my next coil. It will be a 6" model, certainly
|> |bigger than my garage :-)
|> |
|> |I have been thinking about the primary and had a question. I realized
|> |that the flashing that I use for capacitors comes in 4 or 6 inch widths.
|> |It is significantly cheaper than copper tubing, and I was wondering if I
|> |used ribbon of this flashing that had the same surface area as a tube of
|> |the proper diameter (say 1/2") if it would have the same current
carrying
|> |capabilities and would work as well.
|> |
|> |I'm up for the experiment if no one knows, but I'd hate to just waste
the
|> |money if someone has tried it before.
|> |
|> |Chip
|> |
|> |=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
|> | Chip Atkinson
|> | http://bhs.broo.k12.wv.us/homepage/chip/info.htm
|> | --- Everyone is someone else's weirdo. ---
|> |=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
|> |
|>
|