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Old March 13th 09, 07:08 AM posted to rec.radio.amateur.boatanchors
Richard Knoppow Richard Knoppow is offline
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First recorded activity by RadioBanter: Oct 2006
Posts: 527
Default Paper capacitor and Hallicrafters S-40A notes


"Antonio Vernucci" wrote in message
.. .
While the high C value may not seem to be a problem I
suspect it may indicate some deformation of the capacitor
elements or some other problem.


I suspect the the high C reading is not due to a real
capacity increase, but rather to the fact that the meter
shows a C higher than real when the measured capacitor is
very lossy, i.e. it has a fairly low resistance in
parallel.

73

Tony I0JX

That might happen using a capacitance meter than does
not measure the series and parallel resistance. The GR
bridge does, which is not to say that you might not be
right. It will measure capacitors that my Tektronix
multi-meter will not measure, or, rather, will not give a
stable indication on. Whatever is the case, these are bad
guys indeed.
My main reason for mentioning this was to confirm the
wisdom replacing paper caps where they are encountered.


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Richard Knoppow
Los Angeles
WB6KBL