Solid State Guitar Amp Forum | DIY Guitar Amplifiers

Solid State Amplifiers => The Newcomer's Forum => Topic started by: saturated on October 13, 2025, 12:29:27 PM

Title: Realistic MPA-200 volume pot replacement
Post by: saturated on October 13, 2025, 12:29:27 PM
Ok guys time to get to work  xP

First order of business attempt to reach this little guy

Oops need some background info: customer (me) claims left channel spins 360.  Amp has been tested seems to pass DBT and passes sound from guitar 🎸 (not the plan just testing)

So I figured the best way was to disconnect the front face plate.  That did not leave me much room because the wires are tightly bundled and I do NOT want to open that Pandora's box unless I have to.  So I laid it upside down and access was better.

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Then I saw I could unscrew the potentiometer bracket so I went at it with a sideways screwdriver but that was tedious I remembered a little ratchet set I bought a while back  :tu:

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This has been educational because I learned there is a song by Eric Johnson called "zap"

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And no I won't be attempting that  :lmao:

Now my volume pot is almost liberated

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I need to find a suitable replacement it's A250K

Also would you clip it off or desolder  :loco