[Amps] Advice needed for SS amp

[Manfred Mornhinweg]

Ron,

> I do not know what the breakdown Voltage or dielectric constant are, 
> but the "cover sips" are uniform very thin square (~3/4") glass
> plates used to cover the specimens under a microscope, the much
> thicker "slide" (~3/4" x 2") might be an alternative.

I wouldn't dare to make capacitors from such thin glass plates. To 
achieve a stable, predictable capacitance, it's necessary to compress 
the stack of copper sheets and insulator sheets with a significant 
force, to get the metal flat against the insulator, without air in 
between. And I can't imagine how to do that without cracking those glass 
plates!

Also thin glass might be problematic with heat, both during soldering 
and later during use. While glass has a very high melting point, it 
easily cracks from thermal stress.

Maybe some plastic foil could be the answer. But teflon is very soft, 
and many other plastics don't handle heat well enough, or their loss 
factor is too poor.

Manfred

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