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Slider pots

Discussion in 'Troubleshooting and Repair' started by Harry Kershaw, May 16, 2017.

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  1. Harry Kershaw

    Harry Kershaw

    2
    0
    May 16, 2017
    Hi
    I have a vintage Tascam Porta 05 mini studio that I am trying to restore. I have repaired all the running gear (belts etc:) but I am having problems with the slider/faders on the mixer section.
    It is a four track machine and there are four channel sliders and a master (five in total). Channel two doesn't seem to work and is on all the time. I take it this must be a faulty pot. The information on the side of the slider is:- 223E 50KA (photos available) it is 60mm long.
    I am by no means an electronics expert but am able to solder satisfactorily.
    As I cannot get spares from Tascam does anyone know where I could get a suitable replacement pot for this machine. Also would there be any points I had to be careful of whilst carrying out the work.

    Thanks in anticipation.

    Harry
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,477
    2,820
    Jan 21, 2010
    The 50KA almost certainly means that the maximum resistance is 50kΩ and that it is a logarithmic (or audio) taper.

    Everything else about the pot is likely to be related to mounting and track length etc. Just find one that fits.

    You could look on rs's web site http://uk.rs-online.con
     
  3. shrtrnd

    shrtrnd

    3,796
    503
    Jan 15, 2010
    While you're looking for replacements, you might try the spray-can contact cleaner stuff to see if you can extend the life of the sliders.
     
  4. Harry Kershaw

    Harry Kershaw

    2
    0
    May 16, 2017
    Thanks already done that.
     
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