Re: Primary Coil...
Subject: Re: Primary Coil...
From: richard.quick-at-slug-dot-org (Richard Quick)
Date: Mon, 12 Feb 1996 03:20:00 GMT
>Received: from uustar.starnet-dot-net (root-at-uustar.starnet-dot-net [184.108.40.206]) by uucp-1.csn-dot-net (8.6.12/8.6.12) with SMTP id VAA12459 for <tesla-at-grendel.objinc-dot-com>; Sun, 11 Feb 1996 21:48:21 -0700
* Original msg to: Swassell-at-sv.span-dot-com
* Carbons sent to: usa-tesla-at-usa-dot-net
Quoting Stephen Wassell <swassell-at-sv.span-dot-com>:
About primary coil conductors:
> Is there any reason not to just use heavy insulated wire, layed
> down in a tight, flat spiral? I remember seeing a similar thing
> on one of the funet photos. This would be easy to adjust - just
> add or remove a loop or two of wire from the spiral.
I have tried this but it is not a nice as a copper pipe or strap
primary. First, removing or adding turns by taking off and adding
in loops of wire creates a problem with off-axis inductance which
lowers the tank circuit efficiency. You can cut off and splice on
sections of wire to get around problem #1, but it looks bad and
the splices have a tendency to leak corona and are prone to
flashovers on the primary coil.
I don't think any reasonably priced wire is going to offer the
efficiency, ease of use, and good looks of a well constructed
copper pipe or strap primary coil.
... If all else fails... Throw another megavolt across it!
___ Blue Wave/QWK v2.12