potentiometers vci
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  1. #1
    Tech Mentor Anthony More's Avatar
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    Default potentiometers vci

    Does anyone know where to get the same pot-meters as in the vci?
    (stereo? 10k? )I came accross some on the internet,but don't know what
    exact specs. it must have.

    There is also a difference between the gain pot-meter and the eq pot-meters.
    The gain goes smoothly from begin 'till the end,the eq-meters have a 'rest" point
    in the middle

  2. #2
    DJTT Super Moderator midifidler's Avatar
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    Try Farnell they will have them, indented pots will be harder to find though.

    Im pretty sure you need to buy linear as opposed to logarithmic pots as well

  3. #3
    Tech Mentor Anthony More's Avatar
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    Quote Originally Posted by midifidler View Post
    Try Farnell they will have them, indented pots will be harder to find though.

    Im pretty sure you need to buy linear as opposed to logarithmic pots as well
    Thanks for reply Midifidler,
    But, I'm not so good in tech-english,
    can you explain; indented pots,linear as opposed to logarithmic pots.
    what do they do?

  4. #4
    DJTT Super Moderator midifidler's Avatar
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    Indented pots are like all the eq pots on the VCI, they click into place at their mid point.

    Logarithmic VS Linear

    http://en.wikipedia.org/wiki/Potentiometer

    This explains it in greater detail but put simply a linear pot will increase in resitance by a constant amount for every degree it is turned

    A logaritmic pot resistance increases at a greater rate the further from the zero position it is turned.

  5. #5
    Tech Mentor Anthony More's Avatar
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    On the all the pots in the vci is text printed; 10 3B
    The pots are from Alps and for what I found out the 10 stands for 10K
    and the (Taper)3B stands for Logarithmic.So all the pots must be logaritmic in the vci.
    But is this neccesary for EQ control? Will Linear also be good enough?
    I could not find an exact match on the Alps site so it seems Vestax let them custom made.

    Alps has also pots with the text 15A and that also is logarithmic (Red it in another Forum).
    So If I would replace A Gain pot on my vci it could be this one (only
    the shaft is 2,5mm shorter, and the text says 10k Taper15A);

    http://www3.alps.com/WebObjects/cata...9L1140A5E.html

    And for replacing The Eq pots it would be;(10K,1B(Linear)
    with center detent, Shaft is 5mm longer);

    http://www3.alps.com/WebObjects/cata...9L114001T.html

    Can somebody confirm this, or correct me if I'm wrong
    Last edited by Anthony More; 12-14-2008 at 07:52 PM.

  6. #6
    Tech Mentor Anthony More's Avatar
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    Quote Originally Posted by midifidler View Post
    Indented pots are like all the eq pots on the VCI, they click into place at their mid point.

    Logarithmic VS Linear

    http://en.wikipedia.org/wiki/Potentiometer

    This explains it in greater detail but put simply a linear pot will increase in resitance by a constant amount for every degree it is turned

    A logaritmic pot resistance increases at a greater rate the further from the zero position it is turned.
    Thanks for reply, I did some homework myself,
    maybe you can comment my above post.

  7. #7
    Tech Mentor Anthony More's Avatar
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    [QUOTE=Anthony More;18789]On the all the pots in the vci is text printed; 10 3B
    The pots In the VCI are from Alps and for what I found out the 10 stands for 10K
    and the (Taper)3B stands for Logarithmic.So all the pots must be logaritmic in the vci(even the little pots).
    But is this neccesary for EQ control? Will Linear also be good enough?
    I could not find an exact match on the Alps site so it seems Vestax let them custom made.

    From Alps; 1B stands for linear
    3B stands for logarithmic
    15A stands for logarithmic
    see picture for curve behaviour of the pots

    I don't know why in the vci are the ones with the 3B taper(They are at the beginning and the end logarithmic, and in the middle linear)
    maybe it has to do something to do with the behaviour of midi commands.
    Somebody?
    Last edited by Anthony More; 12-27-2008 at 06:23 PM. Reason: more info
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  8. #8
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    http://www.sparkfun.com/commerce/categories.php

    or

    http://www.jameco.com/webapp/wcs/sto...0001&langId=-1

    should have some pots for you if not a bunch of other cool things

  9. #9
    Tech Mentor Anthony More's Avatar
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    Well,good news.

    I ordered linear pots, and the code on the pots are the same as in the vestax pots.
    The codes do not correspond with the codes in the product presentation.
    topic closed!
    http://www.djtechtools.com/forum/showthread.php?t=2545
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