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  1. I have a Samson D412 in my shop now, the...

    I have a Samson D412 in my shop now, the soldering on this one is excellent, maybe they switched to a different contract assembly firm.

    The problem was the 12 inch speaker, voice coil shorted out....
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    Thanks

    Thanks
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    Do you have a copy of the service manual for the...

    Do you have a copy of the service manual for the ME-25?
  4. The only RK11K series pot that you can buy...

    The only RK11K series pot that you can buy off-the-shelf with a log taper is a 20K pot, not a 10K.
  5. I got it working, but with a little more effort...

    I got it working, but with a little more effort than I originally thought. After I found the mistake in post 13, i realized I needed to pull one end of the pot down below ground with a negative...
  6. I'm very confident I can take one apart, putting...

    I'm very confident I can take one apart, putting it back together not so much.

    If the mod I'm thinking about works, there may be not need to do that.
  7. My bad, sorry to Enzo, was having a very bad...

    My bad, sorry to Enzo, was having a very bad morning.
  8. Here's the key voltage levels at the wiper: .3...

    Here's the key voltage levels at the wiper:
    .3 volts - "toe-down", the FX pedal light toggles when you drop below this level
    .5 volts - Volume reaches max, does not increase as voltage goes lower...
  9. If you disconnect the pot from the foot pedal...

    If you disconnect the pot from the foot pedal mechanism and rotate it with your fingers, the volume function works just fine. The problem is the foot pedal restricts the rotation to a small range of...
  10. Apology accepted. I did some more work on it and...

    Apology accepted. I did some more work on it and I now know that the problem is the linear taper. However the other tapers are only available on special order with a minimum order of many thousands...
  11. I don't need a lesson in basic trouble shooting....

    I don't need a lesson in basic trouble shooting. I need an exact part number for the ALPs pot, do you have one?
  12. It's mounted on a board like this: ...

    It's mounted on a board like this:

    http://www.eaelec.com/images/me25_pot.png
  13. Need a replacement potentiometer for a Boss ME-25

    The potentiometer for the expression pedal on my ME-25 wore out, so I opened it up and found it was an ALPs RK11K series, 10K ohms.
    My brother has the older ME-20, which still works OK, so I opened...
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