If you have a plastic supply business close by you may be able to get what
you want. There are small sign shops and also marine businesses that use
plexiglass and other sheet material. They may have some small pieces or
will cut what you want. Those materials can be drilled and glued very well.
On Tue, Feb 7, 2023, 4:18 PM jimlux <jimlux@xxxxxxxxxxxxx> wrote:
> For building up some small TCs, I'm looking for ideas on off-the-shelf
> disks, say, 18" in diameter, made of an insulator that can tolerate
> drilling holes or gluing. For the base of the TC and for a primary
> support (I'm thinking of stacking them with sparkgap and caps below).
>
> squares the same size would be ok. I've looked at things like plastic
> cutting boards.
>
> Plywood or masonite circles are available, and would work as a base, but
> probably not right for the primary support (HV contact)
>
> I've see serving trays of plastic, but they're black, and I'm leery of
> black plastic for HV.
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