Recently, Somebody Somewhere wrote these words
> Are those resistors carbon-composite types from the 1960's?
>
> In that case I wouldn't be so sure that you can eliminate them. We had
> couple of those in a student lab I was teaching. Every once in a while
> we found 5.6kohm devices with roughly 200ohms and/or vice versa.
>
> These were unused resistors which were still in their original
> package, not exposed to anything which might be considered harmful for
> a resistor during the 30+ years of their shelf life...
Being a complete lazy ass, I checked all these resistors with Analogue
Signature Analysis, using two flying probes with a variable (frequency
and magnitude) sinewave. The display shows Voltage on X axis, and
current on Y axis, so a reesistor looks like a diagonal line. They came
up pretty similar. It's not rocket science, but it is testing under
realistic conditions.
Anyhow, _I_ eliminated the resistors, I didn't take them for granted.
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
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