[GreenKeys] Telephoto machines?

[Pete Lancashire]

Fun page of the paper in use

http://www.joostrekveld.net/?p=1409

On Tue, Jun 30, 2015 at 10:38 AM, Chris Elmquist <chrise at pobox.com> wrote:

> Bob Pease wrote about it in 1994,
>
> What's All This Teledeltos Stuff, Anyway?
>
> http://electronicdesign.com/analog/whats-all-teledeltos-stuff-anyway
>
> and looks like there is a seller in the UK still offering it,
>
>
> http://www.betterequipped.co.uk/teledeltos-conductive-paper-prd1516-pack-of-10-sheetsp-1262
>
> Interesting stuff and discussion.
>
> Chris NØJCF
>
> On Tuesday (06/30/2015 at 01:10PM -0400), Lester Veenstra wrote:
> > And also use in the SONOGRAPH, a device well known to CTTs and CTMs.
> >
> >
> > Lester B Veenstra  MØYCM K1YCM W8YCM
> > lester at veenstras.com
> >
> > > -- Chris Elmquist N?JCF
> >
> >     No, it was called Teledeltos paper.   It's a simple resistive
> > coating (carbon plus copper thiocyanate in the final version)
> > which is burned off by power from the writing stylus.  It's
> > not electrostatic; that puts something onto the paper. This takes it
> > off.
> >
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> --
> Chris Elmquist
>
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