From Newsgroup: comp.sys.apple2


Achim Hensel <achim.hensel@ruhr-uni-bochum.de> wrote in message news:20030710144959.6dc33636.achim.hensel@ruhr-uni-bochum.de...

Hai, Folks..

I had to take apart my SGI 1600SW flatscreen monitor to clean it out

This is a flatscreen; no huge voltages, no electrobeams.

You're right -- my bad. :-)

I think the *opposite* is true because you would essentially form a
huge metal-oxide-metal (MOM) transistor, i.e.:

This will work as a transistor, This is just a capacity. The
transistor would need an other/third contact to modify the electric properties of the intermediate layer (I also do doubt if a metal-insulator-metal structure with that insulator matter and
thickness can fuction as a transistor).

You can call it a transistor, or a diode, or a non-linear junction--the
effect is the same either way.

Indeed a non-linear device (non-linear reaction to voltage) can
transduce a signal to different frequencies. But a capacity is, in this regard, just a linear device. It might react different to various frequencies, but it's reaction is proportional to the voltage (and
signal), so no other frequencies can be produced.

The metals will oxidize over time (days or weeks, not months) creating an
oxide layer between the metal surfaces. The device formed is *not* a mere capacitor.

Tape with a conductive layer should seal the flatscreen to electronic immissions and emissions. I really doubt, if high voltages are produced,
so that should be no problem.

Since its just a flatscreen (and I'm expressly presuming an LCD or similar
this time, not a CRT with a relatively flat front) my concerns about the electron beam sweep and high voltage were misplaced.

If you really need connecting the metal tape layer to the metal base use [well, I don't know the english word for it; in german it's
"Leitsilber". It's a conducting liquid which will dry and then form an electric connection; maybe it's called "conduction silver paint" or "Colloidal silver"].

Do you know where I can get some? I've had a difficult time locating any sources for it.

Thanks,

Mike


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