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From: Mike Monett
X-Mailer: Mozilla 2.02 (Win16; I)
Subject: Re: Low leakage parts
References: <firstname.lastname@example.org> <3E17D633.378A@sneakemail.com> <3E184B38.588B@sneakemail.com> <email@example.com> <3E186B3C.5BA0@sneakemail.com> <firstname.lastname@example.org> <3E18805E.4AA@sneakemail.com> <email@example.com>
Date: Tue, 07 Jan 2003 12:11:56 -0500
NNTP-Posting-Date: Tue, 07 Jan 2003 12:11:22 EST
Organization: Bell Sympatico
Boris Mohar wrote:
> This was for measuring Tritium in air. It was important that once the
> instrument was zeroed that it stayed zeroed. Speaking of zeros, to my
> dismay I discovered that some high value resistors have a non linear
> voltage coefficient. At very low voltage drops the value of one Tohm
> resistor start to go through the roof. So just as you zero your
> electrometer your feedback resistor value increases making it even harder
> to zero.
> Boris Mohar
> Viatrack Printed Circuit Designs
Amazing. How do you measure the value of a 1T resistor at low voltages?
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