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Re: Flat Spiral Winding Techniques
Original poster: "Barton B. Anderson by way of Terry Fritz <twftesla-at-qwest-dot-net>" <tesla123-at-pacbell-dot-net>
Hi Robert -
Tesla list wrote:
> Original poster: "rheidlebaugh by way of Terry Fritz
> Dave: I use fiber glass resin to coat all my coils. I can have a coil ready
> for use the next day.I suggest this on the net and get no responce.You are
> using urethane and take days. Can you tell me what advantage your coating
> has ? I would like some feedback. I may never change, but I would like to
> hear some responce. Thanks
> Robert H
Fiber glass resin would be just fine. I used spar varnish mainly for
cosmetic reasons, flexibility, and
because it's in the garage.
Some advantages to varnishs, urethanes, etc.:
* it wicks into the windings where a resin won't.
* if there's damage, like a shorted turn, it's easy to see and fix.
* if done right, it looks really nice.
* takes a while.
* can be damaged if the wife opens the garage door and knocks the coil over.
* hard on flat secondarys.
But with the strips of superglue runners on top, the windings stay down
nice and flat. I just applied my
3rd varnish coating (nice and thick). The flat secondary is perfectly flat.
Now it's just a matter of the
number of coats I want.