Re: Replacing CC resistors
And low inductance should not be forgotten. Those dastardly carbontoggle quoted messageShow quoted text
compositions are quite irreplaceable as (50 Ohm) terminating resistors.
In these days, ceramic composition is offered as replacement for carbon,
with low inductance, high surge etc., but no one is talking about long term
stability. Examples are Ohmite's 'OX', 'OY' and 'Little Demon' series.
Construction of those ceramic composition resistors appears to be same as
that for carbon composition, so the same problems might crop up past 1000
hours standard test for resistors. A true hermetic seal would certainly
improve long term stability, but that is a difficult proposition. It appears
that only thing that would do that trick is a layer of glass or glassified
ceramic around resistive element and phenolyc encapsulant to provide
mechanical protection for that fragile sealing material, but that would
drive price of resistor sky high.
----- Original Message -----
From: "Michael Dunn" <firstname.lastname@example.org>
Sent: Friday, January 16, 2004 2:26 PM
Subject: [TekScopes] Replacing CC resistors
Yes, old carbon comp resistors *can* drift. Just a thought: if