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October 25, 2025, 08:03:04 AM

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Realistic MPA-200 volume pot replacement

Started by saturated, October 13, 2025, 12:29:27 PM

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saturated

Yes sir thanks no it might not be long enough idk  xP
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome

g1

Quote from: saturated on October 19, 2025, 08:55:19 PMMan that would RULE if I could just stick another plastic disc on there

Any pot from that same Alpha series should have the same plastic part and you should be able to 'transplant' it over to your old pot.

Save the old parts in case you have trouble making the Bourns pot fit.

saturated

I got my replacement pot in today it's a little shorter but seems to be long enough

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I wigged out noticing the locater tab was 180 off but realized I put the old one back on wrong

Got everything soldered up and installed

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The first thing I did was hook up signal and scope but I couldn't get it to work  :grr
I wanted to watch the amplitude change as I turned the volume control.  I did manage to get input and output signal but seemed to be backwards to my horror  :grr  :'(

Moving right along I had to unhook my present jams and attach some speakers and a cassette player

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And I'm glad it's working  :dbtu:

I'm glad the meters work and the volume is not backwards
I'm glad that both channels work.
I'm glad that surprisingly it's dead quiet when nothing is playing

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The thing that bothers me and that is for another day....is this thing is at like 3/4 volume and either the cops should be here or my wife trying to kill me.

So yeah it's not the loudest. 

I have it at (for me) decent listening volume.  If we were talking you might have to speak up or occasionally ask me to repeat something so that's cool.

But I thought like at half volume speakers would be melting  :grr

And I know yeah there's probably many other factors  xP

I'm noticing now the power light doesn't work.

But hey I'm loving it right now  xP  :dbtu:  :lmao:

Been a crazy busy week and now I'm sitting here at 0430 rockin some tunes  :dbtu:
I ask stupid questions
and make stupid mistakes

criticism, critique, derision, flaming, verbal abuse welcome