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Re: Perfecting my final design... (double layer primary)
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- Subject: Re: Perfecting my final design... (double layer primary)
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Mon, 13 Jun 2005 21:50:27 -0600
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- Resent-date: Mon, 13 Jun 2005 21:56:12 -0600 (MDT)
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Original poster: "Peter Terren" <pterren@xxxxxxxxxxxx>
I've used a double primary on this museum coil without problems. Note that
any excess not used will have an increased voltage from the autotransformer
action. On mine this is about a spark length of 1 1/2 inches between the
two ends of the coil which are in close proximity. The two layers need to
have insulation between them.
http://tesladownunder.com/Tesla%20display.htm#Upgraded%20coil.
(All one line in case it doesn't wrap properly)
Peter
Original poster: "Adam R." <arabraxas@xxxxxxxxxxx>
.....
I have a question on the primary--I'm trying to make it high
quality/durable and compact. What I'm trying is something that I've seen
before and have been wanting to give it a go: a simple dual layer primary.
It will be 1/4" OD Cu tubing ten turns, each wound in opposite directions
(so 20 turns total, top and bottom layers). So each layer will be ABOUT
0.0306 mH. Does this all sound right? I'm worried I might build it and
find I need more inductance! Or am I making it overkill with two layers of
TEN turns? Because the total width of the base is 17"x17", I need to get
the size right (I have acrylic pieces and they are expensive... cannot
mess up!) My coupling to the secondary is about 1".....