(Topic ID: 241590)

Help with trim pot replacement


By kguenther6

5 months ago



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  • 5 posts
  • 3 Pinsiders participating
  • Latest reply 5 months ago by kguenther6
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    #1 5 months ago

    I have a Midway Stunt Pilot and need to replace the trim pots on the sound board. But I don't know anything about trim pots. What ohm value should I use? Is there anything else I need to consider? I don't see any markings on them to help me out. I do know the board runs off 6 volts. And any idea where to get them? I looked at great plains and mouser and didn't see any that looked like these. Any help would be appreciated. Thanks in advance.

    20190426_095044 (resized).jpg
    #3 5 months ago

    Ohms is all you need. And that it is the same physical size to fit in the holes. There should be 3 legs. Put an Ohm meter on the 2 outside legs and that should give you the value. The center leg is the moving part that usually goes bad.

    #4 5 months ago

    Great tip on using the meter set on Ohms. I'll try that. And thanks for the digikey web site. I'll measure the ohms and get one ordered. Thanks!

    #5 5 months ago

    I couldn't get a reading with the MM but I did see stamped very lightly on the back side was 47k. So I ordered some through digikey. Thanks again for the help.

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