Re: Edgewound primary

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

Original poster: "Kurt Schraner" <k.schraner-at-datacomm.ch> 

Rick,

my strip primary (copper ribbon spiral) is made of copper ribbon of 0.55mm 
thickness only (20mm wide). I also don't meet any problems with corona. A 
pic may be seen at:

http://home.tiscalinet.ch/m.schraner/FlatPrim_1555.jpg

The view is from the bottom side (...when later buildt into the TC). In 
front of the coil are 6 of the really flat taps, developped for this 
primary, mounted on a piece of ribbon for demonstration.

Kurt Schraner

Tesla list schrieb:
>Original poster: "Richard W." <potluckutk-at-comcast-dot-net>
>Hi all,
>I think "edgewound" is an error in terminology on my part. I suppose the
>better term is "strip primary"?
>It was corona that was my concern and I was looking for methods to eliminate
>it or at least minimize it, therefore the post. But it's been posted that
>corona will not be a problem.
>Anyway, the goal is to create a primary whose surface is flat, smooth, easy
>to clean and durable. Something I don't have to worry about benting if
>accidently struck while moving or packing. The HDPE (1/4" x 1-1/2") is the
>"spacer". Since I see there will be no problem with corona I should be able
>to roll a flat-surfaced primary. That would leave 1-1/2" copper sticking out
>the bottom. I could make a fold 3/4" up from the bottom that will help hold
>the HDPE from sliding down and also help facilitate tapping (a stronger
>area). Yes, I can make a clean sharp fold the length of the strip before
>rolling, just takes a little time in a 3 step process. I've made a test fold
>in a piece about a foot long. The edge turned out nice and crisp without
>breaking, splitting or signs of metal dislocation. It's pretty soft.
>
>Rick W.
>Salt Lake City