Heathkit ET-3400 red filter material?

[Ethan Dicks]

On 9/9/05, James Fogg <James at jdfogg.com> wrote:
> > As I restore this ET-3400, I am curious if anyone knows what
> > kind of filter material Heathkit provided that sticks to the
> > TIL312 7-segment displays? 
>
> Two ideas come to mind - lighting gels, used in stage lighting, and
> Kodak makes lens filter gels in a huge range of colors. Both these items
> will appear to be colored sheets of plastic.

>From this and a couple of off-line suggestions, I guess I should be
more precise in my description of the material in question.  The
ET-3400 has no bezel around the TIL-312 displays.  The red filter
material provided by Heathkit was pre-cut to the exact size of the
face of each display, and sticks on by its own adhesive.  It seems to
be quite soft (vinyl-like as opposed to mylar-like) and quite thin -
much thinner than scotch tape.

I'm sure I can find some sort of red non-adhesive plastic, but I was
really hoping to find the same sort of material they used so the
displays match.

Thanks,

-ethan