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A question about some Capacitors

Discussion in 'Electronic Basics' started by Vonkaiser, May 7, 2004.

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  1. Vonkaiser

    Vonkaiser Guest

    I have a friend who is a retired electrical engineer, and he asked me
    to try and sell some of the capacitors he has in his basement. I have
    no idea what they are worth they are:

    General Electric

    2200 UF--10+50%
    400 VDC 450 Surge
    85 C MAX ambient

    He has six of them, does anyone have any idea what they are used for
    and if they are worth anything?

    Thanks in advance...
  2. You might look them up is a current catalog to see what new ones sell
    for (try the Newark-in-one online catalog, for instance). But these
    kinds of capacitors do age and are eventually pretty useless. Most
    have a date code on them that shows last two digits off year and week
    of that year. 9836 would be the 36th week of 1998. If yours are more
    than 10 years old, they are getting worrisome. So you might derate
    the price from a small discount - towards zero (hobbyist or
    experimenter use, only), based on a 10 year practical lifetime.
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