How To Replace Volume Pots on Guitar Amplifiers

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In this video I investigate a crackly volume pot on an old bass amplifier and complete the repair by replacing the bad pot with a new one.
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[@Shopcat22]

I didn't even know you could do that. Cool. Thanks for sharing this.

[@brucelk19]

Can anyone help me.. I have a Roland micro cube and of all pots to go bad it is the one that controls 4 fx so my confusion is that each 25% of turn is hi two low of 1/4 of effects.. anyway bought it used n that pot spins 360• so past off n on so. My confusion is is this fixable? Replaceable? And is this just any ordinary pit or do I need to order some special 4 way? New to this and don’t know the differences or where to order them.. I’d hate to be out a $180 decent practice amp n my best amp at the moment over a bad pot but the amp is useless because you can’t find on off sweet spot and it blends all 4 Fx as of now so you can’t even just leave it on say just chorus just phase just flange just Trem it’s a blend of a horrid sound... any help appreciated thank you

[@ESCAGEDOWOODWORKING]

Nice work JP!! I have a fender amp from 1990. It's a stage 112 se. It has that problem...need to change the pots for sure.

[@jpsworkshop2544]

Thanks for watching, thats a lovely old amp you have, you should get it back into use ASAP!

[@ESCAGEDOWOODWORKING]

The crackling is very disturbing...I need to put it on my list of things....

[@solilacio]

So easy but i didn't know. Thank u.

[@toddclites]

I hope you’re still reading these. I have a volume pot that when I turn it up it’s only a whisper. Would replacing/cleaning it be your first guess at why it’s not working correctly? Thanks if that is it your tutorial is exactly what I need

[@jpsworkshop2544]

Hard to say without more detail but for the few seconds it takes, it's always worth giving your pots, switches, and jacks a clean. Sadly there are many reasons a volume would only output a whisper, could be you've blown a valve or a transistor.

[@ermonski]

Man this could revive my 15-year old Laney HCM30! Does this method also apply to the EQ and Drive pots? Do I need specific values?

[@WeyounSix]

Literally exactly what I was looking for. Thank you

[@lucian2892]

Hello! Thank you for the video. Just one question: what's the resistance of those pots? Thank you!

[@noi5emaker]

What kind of pot did you order?

[@viniciustocchio]

Hello, I have a Marshall Vavestate 40V, and I noticed that the bass pot isn't working at all. I changed the potentiometer already but still the same. Does anyone have any idea what it could be? Thanks!

[@kennethlankford6809]

Mine crapped out after many years of static , old pot crapped out

[@DesertBumWoodWorkn]

That's fixable, Wow, how cool is that. Chuck

[@jpsworkshop2544]

Everythings fixable if you can find the parts, you just have to be careful to match the new pot to the one you are removing. Thanks for watching!

[@gazfuk]

How did you locate the right one to order? Min does not have much to identify it.

[@carstenaugust]

Great video. Thanks😊

[@AstorSkywalker]

how to you know what kind of pot to order?

[@goshhowhorrible8340]

Thanks for posting this vid

[@robertcurtis9030]

Thank you! I am hoping to find a schematic! This is an eighties epiphone amp, good for learning, ha ha.

[@forgottenrobotz5636]

i need help. i accidentally broke my master volume control pod/button on my guitar amp . is that an easy fix or is it not possible to fix?

[@jpsworkshop2544]

depends very much on the amp

[@forgottenrobotz5636]

JP's Workshop amp is called line 6, spider 3

[@jpsworkshop2544]

I'm not familiar with that amp and I'm not sure what you mean by master volume control pod button? Is it one where you pull the knob out to toggle between clean and overdrive? Whatever it is as long as you can get to the board the pot is mounted on then it should be a straightforward repair, just make sure when you order your new pot that the resistance matches the old one and for volume control you should be buying a logarithmic pot. Might even be worth emailing Line 6 to see if they carry spares. Also when you dismantle your amp take lots of pictures along the way to help you remember how it goe sback together. Good luck and if it seems unsafe don't do it.

[@Wob-O]

What kind of volume pots do you use?

[@jpsworkshop2544]

logarithmic for volume, linear for tone

[@darryelneel4975]

Great video! Maybe you could do a soldering on the circuit board for idiots video?

[@jpsworkshop2544]

to be honest my soldering ain't that great so I wouldn't attempt a soldering technique video without seriously upping my game first. I'm also very much of the opinion idiots generally shouldn't be allowed to hold soldering irons. Thanks for watching

[@moosey62]

Dear Sir HA! I notice this video was made in 09.2016. I reckon that's MY yellow and black Phillips screw driver, as that's about the last time I ever saw it.

[@jpsworkshop2544]

If you can tell me where I found it then its yours

[@moosey62]

Right then. I'm pretty certain about this: You are the father of one of my son's mates. It was in your shed underneath your lad's Derbi moped in a pool of oil in your wife's best frying pan. Along with my 3/8" socket wrench which hasn't been seen since, either.

[@jpsworkshop2544]

Sorry but no, also my boy would be in deep trouble if I found out he was riding mopeds what with him being 3 and all.

[@moosey62]

Meh.. was worth a shot. Mate, thanks for the top vid. Sorted my 30-yr-old Laney 30w. First time I've ever had a go at anything so ambitious. Have a great summer. BR Matt

[@jpsworkshop2544]

Thanks, you too. Out of interest it wasn't a 30R Linebacker was it? With the green stripe on the front?

[@finnibertlunchiken7792]

4:00 sounds a bit like babooshka and some other song I cant put my finger on.

[@Mike-eu6mv]

kinda reminds me of tom hardy

[@robertcurtis9030]

no help at all 'identifying' ! lucky you, you ordered the right pot.

[@jpsworkshop2544]

You're quite right to point this out, though most pots you find have their resistance value printed on the back. Replace like for like and you should be fine, logarithmic for volume and linear for tone

[@el_stino]

I have the same issue "identifying" what I need as a volume pot for an old Hartke B120 bass combo ... Should I just by "any" logaritmic scale pot and solder it in? or is there any guidance/experience/advice on which to buy ?

[@cusswordsayer3558]

My bass amp has been really quiet for weeks now. I’ve replaced the battery and even the clip but it’s still about 1/3 as loud as usual. I’m sure it’s not the actual bass or cables but it’s hard to see what’s wrong with the amp itself.