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Pot resistance - 473 ?

Discussion in 'Electronic Basics' started by max-man, Sep 13, 2005.

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  1. max-man

    max-man Guest

    I have a broken pot with 473 written on one side - is this 4.7K or 47K
    ? I always forget. :)


    Thanks
     
  2. John Fields

    John Fields Guest

     
  3. DBLEXPOSURE

    DBLEXPOSURE Guest

    47000

    The 3 is the number of zeros, 4.7K would be 4D73 "D" for the decimal
    point....
     
  4. IF that is the value, then it is 47K - however, I don't think I've
    ever seen a pot of that value - pot values usually go 1, 2, 2.5, and
    5, followed by some number of zeros.

    I suspect that 473 is (part of) the maker's model number, not the
    value.
     
  5. Tom Biasi

    Tom Biasi Guest

    Peter,
    47K is a pretty common pot.
    Tom
     
  6. 47 + 3 0=47000, or 47K
     
  7. BobG

    BobG Guest

    Just to confuse things, the standard speed control pot for a curtis
    golf cart controller is 5K, I dont think the K matters... you could use
    a 10K or a 20K pot and it wold work fine. You used to be able to get 1
    meg pots back in the tube TV days.... that might make the controller a
    little squirrly and noisy..... like touching the tip of a hi
    impedance guitar cord......
     
  8. John Fields

    John Fields Guest

    On Tue, 13 Sep 2005 18:10:31 -0400, "Tom Biasi"

    w user info: http://vancouver-webpages.com/nnq
    ---
    Really? I don't think I've ever seen one. If his _is_ 47k and it's
    a 10% pot, then its lowest resistance, end-to-end (neglecting
    terminal resistance) will be 42300 ohms, and its highest resistance
    will be 51700 ohms.

    More than likely it's a 50k pot with an element tolerance of 10% and
    terminal resistances, on both ends, of 100 ohms or less.
     
  9. max-man

    max-man Guest

    Thanks all. :)
     
  10. Tom Biasi

    Tom Biasi Guest

    http://www.maplin.co.uk/Module.aspx?ModuleNo=2208&TabID=1&C=SEO&U=SEOsearchPages&doy=search


    http://www.4starelectronics.com/part_search/PartSearchResults.aspx
     
  11. Hmmm - I see pots with various odd values listed on the Maplin site,
    but almost all pots listed in the Newark catalog have values in the 1,
    2 (or 2.5), 5 sequence. Those odd values must be a British thing.

    If the original poster does have a 47K pot, I'm sure he can safely
    replace it with 50K, which may be more readily available.





    --
    Peter Bennett, VE7CEI
    peterbb4 (at) interchange.ubc.ca
    new newsgroup users info : http://vancouver-webpages.com/nnq
    GPS and NMEA info: http://vancouver-webpages.com/peter
    Vancouver Power Squadron: http://vancouver.powersquadron.ca
     
  12. Tom Biasi

    Tom Biasi Guest




    Special order at Newark, but available.
    http://www.newark.com/NewarkWebComm...earchtype=keyword&Nty=1&N=0&Ntk=gensearch&y=5
    Tom
     
  13. Jasen Betts

    Jasen Betts Guest

    3
    subj: 47x10 = 47K Ohms
     
  14. Jasen Betts

    Jasen Betts Guest

    I've not seen any marked that way, more likely 472 or 4K7

    Bye.
    Jasen
     
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