Re: [TCML] Preparing acrylic coil form

["DC Cox" <resonance@xxxxxxxxxxxx>]

As a minimum, you do want to be sure to strip off any sodium salts that may
have been deposited from you or the distributor handling the acrylic tube.
Personally, I always use plastic gloves when handling or attached the sec
coil even after winding.  This is a bit extreme, but easy to do, and you
certainly don't want any failures when showing off your nice coil to a
school group, etc.

Antonio is correct.  Acrylic is an excellent HV insulator as long as someone
with slightly sweaty hands has not handled it.  Detectives rely on this
principal to get fingerprints for their investigations.

Dr. Resonance

On Fri, May 2, 2008 at 9:10 AM, Antonio Carlos M. de Queiroz <
acmdq@xxxxxxxxxx> wrote:

> Mark Lock wrote:
>
> > Hi all.
> > I've been slowly building my first TC for a while now and I've recently
> > acquired my coil form, a nice piece of acrylic. My question is what do I
> > need to do to prepare it for winding? I've read that it should be
> > cleaned
> > with a solvent, sanded, dried and varnished among others, but is that
> > all
> > necessary?
> > My transformer is 12KV 30mA if that's any indication of how much
> > insulation
> > is required.
> >
> There is no need of any preparation. Acrylic is an excellent insulator.
> You may polish the parts after
> cutting them for better appearance. Leave about 2 cm of insulation between
> the coil and other parts.
>
> Antonio Carlos M. de Queiroz
>
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