--- In TekScopes@y..., "deanhuster" <dhuster@p...> wrote:
By the way, if you end up working on a lot of scopes, rather than
buying several normalizers, you can get just one normalizer and
change out the capacitors by getting rid of the fixed and variable
parts and just installing one with a larger range and the right
physical size that'll go from maybe 10 to 50pF. It'll make it a
little harder to adjust, but won't be that bad and will work for
any
input capacitance you'll come across.
This is a great idea. It might take a slightly larger box to
accommodate a variable cap but the principle is obvious once you know
how the thing works. I have a reasonable collection of Teks with
mainframe and plugin capacitances from over 20 pf down to 15 pf.
Using Stan's probe technique I found there waasn't much maladjustment
in the 1A1 I was working on but the idea of an adjustable
standardizer is very attractive.
Morris
Dean
