>> From: "George T. Daughters" <gdaught6@pobox2.stanford.edu>
>
>> it is perhaps important to note that an increase in the resistance of
>> a composition resistor (or a film resistor, too) can increase when
>> the resistor gets too hot. (rich has said this, too.) it doesn't
>> have to be so hot that it bakes the color bands to new colors. the
>> point i want to convey is that it doesn't *have* to be a parasitic
>> oscillation that causes this change. i've seen resistors in dc power
>> supplies increase by a factor of 3 or 4 by chronic overheating, but no
>> smoke was emitted.
>>
>> 73,
>> George T. Daughters, K6GT
>
>A good saleman never admits anything other than his product or
>"invention" could be a cure for all ills. The goal is to sell
>suppressor kits, not help people understand how things work and why
>things really fail.
>
>Most carbon resistors age and change value when exposed to heat,
>unless they are used in an amplifier. Then suddenly the rule
>Carl, you, I and a hundred others know changes. Only a parasitic can
>make them age off value, according to ONE guy.
>
>73, Tom W8JI
>
To see if Mr. Rauch is right regarding this matter, try reading the
Price/Info sheet on Rich's Web site.
http://www.vcnet.com/measures
Rich...
R. L. Measures, 805-386-3734, AG6K
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