How To Clean Marshall Amp Pots Blows out the dust, Music credits: Tom

How To Clean Marshall Amp Pots Blows out the dust, Music credits: Tommy Guerrero "From The Soil To The Soul" (2006) Marshall Amp Parts - Marshall Lights Mar 14, 2024 · I have a really nice '66 Pro Reverb that has a scratchy Vibrato channel volume pot, The sealed ones are usually self-cleaning: with the amp turned off, cycle the volume back and forth rapidly, this will often clean the track, anybody know the procedure on cleaning them? Aug 13, 2024 · Keep your guitar amp clean by wiping the vinyl exterior down with a damp soapy cloth every so often, Synonyms for CLEAN: spotless, immaculate, pristine, stainless, spick-and-span, squeaky-clean, shiny, unsullied; Antonyms of CLEAN: dirty, unclean, filthy, stained, soiled, foul, uncleaned, grubby clean adjective (NO CRIME) showing that you have not done anything illegal: a clean driving licence The meaning of CLEAN is free from dirt or pollution, Every guitar shop needs to have at least one, I like to see vintage audio I show how to repair a guitar amplifier with volume/tone controls that snap, crackle, pop, cut out when you turn/adjust them, by cleaning the pots, Google "how to clean dirty pots with contact cleaner, CRC Control Cleaner is a good one, as is DeOxit F5, adj, Find common questions, troubleshooting steps, quick guides, user manuals, and all essential information about your DSL1 Combo in one convenient location, I got some dirty pots on my early 80's marshall JCM 800 amp, Jun 25, 2023 · Boost channel gain & volume pots would be set around 1/4 for comparable volume, This page also discusses how your amp's controls work which will help you get the most out of your guitar Aug 15, 2017 · Tone Tips: The Nitty-Gritty on Running Clean Dialing in the perfect distortion or overdrive can be intoxicating, but a killer clean tone can be just as fun, The outside part can be cleaned by dipping a clean cloth in water, while the other parts will have individual cleaning methods, Feb 20, 2010 · Marshall pots are dry so use a lubricating pot cleaner, not a dry degreaser contact cleaner that will increase friction and excel wear, There are a couple scratchy pots that don't have a very good access to spraying deoxit in other than the slight opening on the back, A lubricating pot cleaner will usually have some mineral oil or other silicons so the pot is cleaned and friction wear reduced, Free from dirt, stain, or impurities; unsoiled: a clean kitchen floor; clean clothes, Clean out your pots, input jack, switches, and tube pins with a deoxidizing contact cleaner and a cotton swab, Warning!!!! to clean the pots you may have to remove the chassis, Cleaning guitar pots is a straightforward task, this video may help with how to clean pots on other electronic equipment as well, Cleaning these components is essential to any guitar owner’s maintenance regimen, The inside of a guitar is dusty, and that leads to noisy operation all over again, For some time at least, There are spray "contact cleaners" available for this purpose, but in most cases just mixes the dirt and grime already inside with more dirt and assembly grease and may make the control operate worse than it is already, Learn how to use it with Kris in If your amp will make the correct sound, but only if you fiddle with the knobs a lot, it's possible that the potentiometers (the actual control behind each knob) could be dirty, and need to be cleaned, Nelly Slide Guitar 29, My friend was about to drop $300 on a loaded pickguard for his Strat because everything sounded "bad and scratchy", Is that crackling and popping when you turn the controls on your amp driving you crazy? Here's how to clean them and get back to the music, Thanks in advance for your help, Jul 19, 2023 · So I had a friend round for recording and they mentioned that they had tracked down their amp from their teenage years and they were buying it back, clean synonyms, clean pronunciation, clean translation, English dictionary definition of clean, Following it will minimize damage due to a 1974 Traynor YT-15 Restoration Part 4, It also prevents condensation, By the way Tom Morello from Rage against the machine use this Amp for some recordings, At that point you'll also be able to see what's involved with removing the old pot from the circuit board and replacing it, If you are turning on a new build amp or heavily repaired/modified amp for the first time I recommend you use a light bulb current limiter and follow my Amp Startup Procedure, Jul 28, 2025 · In this article, you’ll learn how to clean guitar amp pots, cleaning guitar amp pots of different types, and the problems with dirty guitar amp pots, Feb 20, 2008 · I'm about to hawk my amp at Guitar Center, and my amps knobs are scratchy, will WD-40 fix that? How bout cleaning the tube contacts? Any other easy things to do before I ship it out? Oh, and it is pretty clean inside, I checked that, Apart from the volume it seems to be behaving, Dirt buildup can often lead to scratchy sounds or no sound at all, By that, I mean you get this scratchy noise every time you rotate them, New comments Mar 7, 2010 · I've tried the Radio Shack contact cleaner to clean my amp pots & sockets but it's very oily, leaves behind a greasy residue you'll wanna clean off (you'll also wanna be careful not to get too much on there in the first place, and wait about an hour before turning anything on to make sure nothing shorts out), I cleaning the pots with Deoxit, Jul 29, 2025 · Cleaning guitar amp is an absolute necessity and must be done from time to time for proper maintenance, May 14, 2008 · Hello, I have this old solid state marshall amp (not that old maybe 8 years), Music credits: Tommy Guerrero "From The Soil To The Soul" (2006) Marshall Amp Parts - Marshall Lights The meaning of CLEAN is free from dirt or pollution, Cleaners are often a temporary fix if the knobs used alot or is poor quality, Dirty pots can cause crackling sounds and signal loss, but Jun 11, 2007 · What do I use to clean scratchy amp pots? By SnoMan97 June 11, 2007 in Electric Guitars Mar 6, 2018 · How to Deal With ‘Scratchy’ Pots We all know the problem, A scratchy amp pot will often produce a scratchy (hence the name), static type noise, Oct 22, 2009 · Introduction - "Deep Cleaning" An Amplifier I have thought that there will be members on the great forum that would appreciate this small tutorial that follows, Hospitals need to be kept spotlessly (= extremely) clean, Simply wiping your guitar with a clean dry cloth after every use will remove debris before it has the opportunity to adhere itself to your amp, If nothing I don’t take any responsibility of the intructions but at least with my 35 years old Marshall Lead 12 this worked OK, Exercising the pots should work, Blast out the pot with compressed air, I wouldn't use it anywhere on the Marshall, if your Marshall has noisy pots just try turning them back and forth quickly without bottoming them out a cpl dozen times with the amp off, Jul 10, 2008 · I've done some searches on AK and haven't come up with a thread explaining how to clean the pots - I have a Marantz 2275, There are many ways to tweak the tone or "voice" of a guitar tube amplifier, I've treated it to the usual Deoxit cocktail a couple times but I can never get the scratchiness to completely go away Does anyone have experience cleaning the volume and channel selector pots on a Marshall JMP-1? My volume pot is extremely scratchy and I would like to fix it up before I sell this thing, There is a special contact cleaner with a lubricant for this purpose, and that is DeOxit F5, [~ + object + out] I cleaned it out before dinner, When I switch to high gain channel the bass is so overwhelmingly unbearable that I end up setting it to 1, only then it's playable because as soon as I move the poti it's becoming too "boomy", V Tuner cleaner or that stuff you can buy to clean your computer stuff? Silicon? Bobbo 77' Feb 12, 2023 · After a small sewage flood, this old Marshall amp had to get cleaned, This also works on the guitar volume & tone knobs, Did I just figure out the best and easiest way Jan 11, 2011 · Hi everyone, i wanted to know, on those amp/receivers that have a pushbutton (on/off/ speaker selector) switchwhere do you spray to clean them out??? can someone maybe post a pic of where i have to place my cleaner tip to clean them out properly? The pots are quite easy but these push buttons Oct 16, 2007 · In order to be sure it's the right part, just open up the amp and take a look at the value and size of the pot you need to replace, Free from foreign matter or If you clean something or clean dirt off it, you make it free from dirt and unwanted marks, for example by washing or wiping it, Toggle switches? Needlenose pliers to gently tighten them up, What should I do, clean it? Dust it off? Cheers!:slash: Discussion about any amps, effects, or anything else to go along with your prized possessions, or, How to clean your PC using software? To clean your PC using software, follow these steps, Several of the pots are "scratchy" on both amps, After cleaning, all pots work as new, and continue to work to date! note Marshall Amp Parts - Marshall Lights DIY - How to Clean Amplifier Pots - Fix Scratchy Volume Control on Guitar Amp Peavey Backstage Plus Crave Guitar 390 subscribers Subscribed Nov 17, 2003 · hi, Apr 12, 2010 · What is the best recommended method for cleaning input jacks on amplifiers and volume pedals? How often? Any common mistakes to try and avoid? What sort of brushes and cleaning solutions are the most common? Thanks, thanks Marshall Amp Parts - Marshall Jacks Mar 29, 2018 · Although they’re usually sealed away inside the body cavity, switches and pots are still susceptible to dust, dirt, and debris that can easily find its way into the body cavity and onto the connections carrying the guitar’s signal to the amp, I've got a couple of questions/sanity checks (it's been a while): Are your guitar amp pots feeling a bit scratchy lately? 🎸 It's time to give them a good cleaning! Using a contact cleaner is key to easily and thoroughly clean away dirt, dust, and debris that can mess with your sound, I recently tried to use it and the volume crackles and pops when adjusting it, Put the knob on the pot, take some string/twine, make a loop around the knob then pull each end of the twine, back and forth (kind of a pulley system) do this a few times, it'll polish the wiper and should be good to go, Would that be better? If so, where do you get it? Aug 13, 2024 · Keep your guitar amp clean by wiping the vinyl exterior down with a damp soapy cloth every so often, This is a place to learn about building and perhaps more importantly, repairing/troubleshooting your amp, Jan 3, 2015 · Hello! I have some trouble with my Marshall Valvestate (VS15r) and to be more specific with it's potentiometers , Nov 17, 2020 · With the pots, I'd watch out with a contact cleaner as most are for removing carbon, You may have to remove the amp from the casing to hold the switches in the right position, I'm getting some crackling in the tone and the pot s the only issue I can find with the amp, Everyone should have a can of Deoxit, All scratching noise was gone and potentiometers work now very well, Regular cleaning helps remove dust and grime buildup, which can negatively affect the sound quality and functionality of your amp, Replacing pots on some (generally older) amps is pretty straightforward, given they used proper pots and they are wired in, Make that grill cloth look new just by using carpet cleaner foam and a vacuum cleaner, and whats the best spray cleaner lube? thanks Mar 2, 2007 · Anyone have any idea of how to go about cleaning dirty pots on an amp head? If I could save me some money and do it myself, that'd be great, Huge overdriven tones are what Marshall JCM800s are best known for, but Billy Corgan has used one to great effect as a clean pedal-platform amp via its oft-ignored low-gain input, After turning them off, removing the power cables and placing each one where it would be easy to work on with plenty of lighting, I took the top cover off and located the input gain potentiometers on the rear panel, Most pots of this type become scratchy soone or later, 100%, You may also experience rough patches in Aug 9, 2014 · how do you clean sealed control pots? Page 1 of 1 [ 15 posts ] Page 1 of 1 [ 15 posts ] Board index » General Audio Discussion » Amplifiers/Preamplifiers All times are UTC Apr 23, 2021 · In addiction to the cleaning/inspection, check capacitors for bulging or cracking of the rubber seal (the bottom of the 4 main capacitors), However, for optimal results, use contact cleaners explicitly designed for this purpose, 4K subscribers Subscribe Dec 4, 2015 · Just picked up a couple of 80's vintage guitar combo amps: a Dean Markley RM-80-DR and a Yamaha G50-112, Get Deoxit products here:🛒 Sweetwater https://imp, 5 days ago · clean (third-person singular simple present cleans, present participle cleaning, simple past and past participle cleaned) (transitive) To remove dirt from a place or object, Go slow, makes notes or drawings if necessary (to help you How do you maintain an amplifier? Just as I have recommended with strings and guitars, maintaining a frequent cleaning routine is the best way to prevent or delay more intensive cleaning of your guitar amp, Pots need to have a little lube so they turn smoothly, I can only assume one or the other is not original? Marshall amplifier Tube Guitar Amp Troubleshooting By Rob Robinette Here's my technique for troubleshooting a tube guitar amplifier, May 16, 2005 · Well, each time I turn on my amp, on one of the channels, it is dead until which time I crank it up to the 5 level for a few seconds, then roll it back down, it works fine after that, Turns out it's just extremely dirty pots with dead spots, Doing this will eliminate crackly/noisy knobs and make your amplifier sound the way it should! Thanks for subscribing! Keep your guitar amp in top shape with simple maintenance tips on cleaning, storage, cables, and ventilation, Jul 28, 2025 · You can order replacement pots directly from QSC, they have their own on line parts store, Clean may refer to: Cleaning, the process of removing unwanted substances, such as dirt, infectious agents, and other impurities, from an object or environment Cleanliness, the state of being clean and free from dirt to empty in order to straighten or clean: [~ + out + object] I had to clean out my desk to find what I was looking for, Volume, Bass, treble & Balance controlMay notice a channel cutting out or crackli Jun 24, 2016 · Pot Cleaning CapThe easiest way to clean noisy control pots, without extracting them from a guitar, amp, or stomp-box! An absolute must for vintage F-hole instruments, Cheapest possible fix, Nov 17, 2006 · A bad cap is less likely in a tube amp because these coupling caps will be small film or ceramic caps that rarely fail, but when it happens you will not solve the problem by replacing or cleaning the pot, By following And unplug the amp from the wall, as if you've left the power switched on some part of the mains input can still carry live voltage without the amp being turned on, Amplified Parts has them for US$4, Replacing a rusty 20k pot in my Marshall MG15FX amplifier, Fixed the ground wire and sprayed out the pots, then lowered the pickups, Fix your scratchy pots and knobs on all your guitar gear with this stuff, You want something with some sort of lubricant in there for pots, This is particularly important if you have a fan-cooled amplifier because, while Jan 3, 2015 · The pots appear to be made by/for Korg, Over the course of about a year I replaced the gain pots in all of my QSC PL2 series amps, a, Seems like some folks blast away with Deoxit 5, some use other products, some just use a drop of one cleaner or the other, Sometimes it really is THAT easy, I would use an aerosol duster first, then try 100% anhydrous isopropyl alcohol if that failed (anhydrous IPA evaporates without leaving a residue), i114863, Shoot a very short blast of cleaner in and then exercise the pot: lay the edge of your hand against the knob and rotate the knob back and forth about 20 times, I am NOT a Technician nor do I p -1 cleaning contacts in switches and pots: is better to use dedicated electronic cleaner spray or WD40? In my previous experience I noticed that WD40 cleans quite well dirty contacts and seems to last much loner than electronic contact cleaner that seems to leave the surfaces dry and prone to get dirty again in the long run -2 for really old gear like this amp (built in mid 80s): is it worth , Mar 7, 2013 · I just scored a Peavey Triumph 60with dirty potscan I spray (clean) them from the front (knobs off), I opened up the back and all the pots look to be covered over by some type of circuit board, I have also used computer duster a few times, This little combo and a Marshall DSL15H in new condition were only $100 for both, They got To add adjustable bias to fixed bias amps with no bias pot you simply replace the bias circuit's second, larger resistor (connected to ground) with a mini-50k linear pot (or trim pot) and a resistor of about half the value of the original resistor, Additionally, be sure to unplug the amp before cleaning to avoid any accidents, Other than the obvious (remove amp from cabinet) what is the best way to clean the various pots? And what is a good cleaner to use? TIA Michael This procedure will be the same or similar on more other guitar and bass amps, clean adjective (NO CRIME) showing that you have not done anything illegal: a clean driving licence Jul 21, 2023 · This is an old solid state amp I got for practically nothing and I'm trying to clean it up cosmetically and functionally, 00:00 Intro 00:10 Bad Pots - Cleaning the Amp 03:11 Hopefully people will see this! Great video, man, Thanks! Locked post, You’ll need to clean different parts of your amp inside-out, Mar 21, 2005 · Cleaning will help for a time but they'll attract the dust more and more, This makes of course channel switching obsolete because clean channel sounds too dry on this EQ Jan 10, 2023 · Guitar pots are small electrical components that can become dirty over time, leading to a scratchy tone or popping noise, Jan 13, 2018 · When replacing fixed bias resistors (or other) with trim pots, is there a standard way to connect them? Thinking of what a resistor sees a rheostat is the same two terminals but I never hear anyone say hey replace your bias R with a rheostat, Install the software and run a system scan to identify unnecessary files such as temporary files, junk files, and unused data, 95, Hi all, I have an issue with my Marshall DSL1, But don’t worry—a scratchy volume pot is a common issue for guitarists and hi-fi enthusiasts alike, and it can be resolved without much hassle, First, choose a reliable PC cleaning software like CCleaner, In typical amp circuits all three tone caps also function as coupling caps to prevent high voltage DC from flowing downstream, Repairing an amp with scratchy pots, There is a little hole at the back of the pot spray in the hole using the nozzle that comes with it and roll pot through full motion a few times to work the lubricant in, Dec 10, 2016 · The best way is to open the pot after pulling out the board (bending tabs, etc; depends on how it was manufactured), clean the resistive film with cotton swabs and alcohol, and the metal contacts with as much physical action is needed to get to clean metal, and then re-apply silicone-based dielectric grease, Jun 20, 2020 · My little combo amp has suuuper scratchy pots--sound drops out entirely in places I have CRC QD Electronic Cleaner, but I think pots can get eaten, right? May 20, 2022 · What are scratchy amp pots exactly? Potentiometers (pots) are used to control volume and tone, Many of these techniques apply to solid state amps too, do I have to pull the amp apart, Apr 2, 2008 · I've seen conflicting advice on how to address scratchy pots on amps and basses, If you've did other small electrical work then it shouldn't be a big deal, Fixing Pots on Amps- (crackles n vol jumps )-Simple, cheap, quick fix, Mar 10, 2025 · Even in a relatively clean environment, dust and debris can build up inside an amp and on the circuit board, which will eventually affect your sound quality, I managed to get out the PCB in a decent way and thought about contact cleaner, but we decided it'd be cool to just replace all of them, Turn off the amp and remove knobs before applying the spray, Feb 9, 2020 · I have a Sony headphone amplifier that's always had scratchiness when turning the volume knob and I tried getting some Deoxit some years ago, the kind that comes with a kind of nailpolish brush, not a spray, but I have trouble taking the amplifier apart, because of Sony's clever design in making Jan 11, 2013 · Whats up dudes!!! I'm having some problems with my Marshall MG100 amp head, thx, Don't panic if your guitar / bass pots start to scratch, If something cleans easily, it is easy to clean, And so did the "Gear Neard" Billy Gibbons from ZZ Top, I didn’t want to use any chemicals because of the age and value so this is the natural Feb 21, 2019 · So, I decided to clean all the pots on all of the amps, Jul 13, 2004 · Hola Cat's, Question, Jan 24, 2024 · Finally got around to opening up the head to clean some scratchy pots and noticed some have plastic shafts and some metal, If you use contact cleaner on your pots it will work, but it will also strip the lubricant out of them, Keeping your amp clean is essential for maintaining its performance and longevity, screwfix does a similar one, In this guide, we will Jun 27, 2019 · Keep your guitar's circuitry in top condition with our guide on how to clean output jacks, pots and switches, He cleans the noisy This is my first tube amp, High voltage present! If you are unsure about your technique, pay someone to risk their life, The master volume pot is really scratchy and barely even works, A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider that allows a change in the resistance in a circuit, when you find cleaning volume pots won't do the trick, In this article, you’ll get to know all about cleaning your guitar amp, how to clean a guitar amp Most pots are sealed, so cleaner may/may not help, Marshall JCM900 50W 2x12 dual reverb combo, But it doesn't clean contacts, the lubricants aren't what you want for pots, and it's got no place maintaining your eurorack gear, Regularly cleaning your guitar amp pots is essential to prevent unwanted noise and ensure your amp functions smoothly, Changes in heat and humidity can render soldering points inactive, and even air itself can cause thin layers of corrosion or oxidation on the terminals, How to clean and service pots on guitar amplifiers Stuart ukguitarampguy 12, Make sure your hands are clean before you have your dinner, 2, The new replacements were a sealed design pot, On the clean channel with EQ at 12 guitar sounds very good, Amp Repair Parts for $7, The amp has been stored for 15 years and I cannot remember what it was like before but given the footswitch switches between clean & boost for effect then volume should surely be comparable, clean·er , clean·est 1, What should I use to clean dirty pot's on my basses and Metro Eden amp? T, A good quality contact spray can save the day, I took apart the amp and used contact cleaner to spray the dirt and crud f Cleaning amp (head) pots : just remove the knobs and spray contact cleaner on them, or completely unscrew/remove the amp from the chassis? Never done this before, but my Orange AD30 volume and gain pots are noisy, Define clean, The left channel cuts out sometimes, Scratchy pots on relatively new amps are often caused by dust sticking to the shaft grease and then working down inside the body, If the problem returns This video shows how to clean your guitar amp potentiometers (pots), Get some NuTrol control spray lube/cleaner and place the plastic dispensing straw against the hole and give a short shot, Amazon has a nice picture and some manufacturer info, Jan 27, 2011 · Don't go down the shaft *GIGGITY* with Deoxit, lift the pick guard and 1 small drop in the opening of the pot, then work the knobs *See Above*, Learning about what goes on in an amp and being able to customize your tone is invaluable, After a few years the pots on our amp get scratchy, Oct 30, 2008 · Basically I have a couple of old Marshall bass amps with scratchy/crackly (actual words?) pots and I want to get this sorted, How to use clean in a sentence, Clean definition: Free from dirt, stain, or impurities; unsoiled, In this episode of the series, we tackle cleaning 45 year old tolex, It doesn't necessarily mean that you have to swap them out, If your amp is cutting out, this could be the problem and a fairly easy fix! Remember to Potentiometers Potentiomers (Pots) for Guitar Amplifiers and Pro Audio Gear Mar 1, 2025 · 10 Easy Steps to Fix a Scratchy Volume Pot Have you ever turned up the volume on your guitar or stereo system and heard that annoying scratchy noise? It’s likely that your volume pot, or potentiometer, is dirty or worn out, I use ' Servisol super 10 ' (is 3-4 quid) on my amps and guitar pots, I've sprayed deoxit from the outside into the volume pot, and rotated it a number of times, Put contact cleaner into a pot and it will seize up, net/3PPqYr🛒 Zzounds htt I got an old Yamaha G100-410 100 watt 4x10 guitar amp that had some scratchy pots, this is a quick amp repair tutorial into To clean an amp, use a soft cloth and mild cleaning solution, wiping away dust and dirt, Duncan Tone Stack Calculator Graph of 5F6-A Tone Stack All three tone controls are set to their mid point, This technique works for many rotary controls like Volume, Tone, Balance, Bass, Treble etc, Clean may refer to: Cleaning, the process of removing unwanted substances, such as dirt, infectious agents, and other impurities, from an object or environment Cleanliness, the state of being clean and free from dirt Define clean, My question: Can I take the amp apart and replace all of the pots? Should I buy a can of airspray and spray it inside the pots? (Does this require me to take the amp apart or can I spray from the front?) Any knowledge from experienced amp guys/girls would be greatly appreciated, NEVER Jan 7, 2004 · The best way to clean the pots is to remove the cover of the component to be able to access the body of the control directly, Nov 30, 2015 · Regular use of the amp may cure scratchy pots, though if it does not, Caig Deoxit or a similar cleaner will help, Try moving them a lot and see whether that helps, Not only do I appreciate vintage audio equipment but also service and repair a piece every now and then, to empty in order to straighten or clean: [~ + out + object] I had to clean out my desk to find what I was looking for, Amp designers and modders can alter the clean and overdrive tone by changing component values, adding components, removing components, adding gain stages or even adding complete circuits like negative feedback, As for spraying from the front (Caig DeOxit works best for me), some pots have enough clearance around the pot shaft to allow enough cleaner/lube in to do some good, but what really needs to be done is take the chassis out, get to the pots, and spray the DeOxit into the pots to do a proper job, We fix locally erratic volume or crackling knobs pots and volume controls on guitar amps in and around Harlow Essex and Hertford Here is a video on how to clean Input select switch, Speaker select switch, When I turn the gain pots , i get scratching sounds or no sound at all ! It seems there is a lot of dirt inside them so I was wondering if there is a safe way to clean them (Contact Apr 11, 2011 · Heys guys! My buddy brought me a JCM900 and the pots make horrible noises when you turn them What is the best soaray cleaner to use? I have some electronics cleaner but I heard about something called DeOxit, Might need a couple of sprays, Contact cleaner is for things like jacks, switches, and tube sockets, where you want things clean and dry with no residue, How to replace pots on music amps, takes you into amp repair basics of how to replace volume pots, Pots were making excessive noise when turned, 9K subscribers Subscribe How To Clean Amplifier Pots with Contact Cleaner Learn the easy and effective way to clean your amplifier pots using contact cleaner, The switches and pots will need cleaning also, so you will have to get a non residue contact cleaner and better to get some contact lubricant, Cleaning a Dirty Volume Control, Protect your gear and improve sound quality, Pots usually have a small slot or hole in them associated with the connection terminals, use any Switch cleaning lubricant, Oct 3, 2013 · They more often blow crap in than clean stuff out, Note the Bass Pot is wired as a variable resistor while the Treble and Mid Pots are wired as potentiometers, Guitar Parts has a big listing of pots for Marshall, In some circuits there is a DC current through the pots, eg the volume pot on a Fender blackface circuit, So my conclusion is that the volume pot needs some cleaning, They were an open design that got scratchy with a few intermittent spots here and there, This is particularly bad when you leave the amp standing around for a few months (years or even decades!) What Causes Scratchy Pots? You’ve probably guessed that it’s just dirt build up, and you are right To clean amplifier pots, use a contact cleaner spray and rotate the potentiometer knobs, Cost? Free, So does the non source terminal go to ground and the Telepaul has it correct, 95 - yikes but at least some more info, This transistor amp dates back to the JCM800 days of Marshall - the 1980's, Is there an easy way to clean this pot out preferably with supplies I can buy from a grocery store ? It only happens on channel 2, " I had to disassemble my amplifier down to the PCB before I could access the pots well enough to clean them (Crate Vintage Club 20W), For vintage amps, where original pots will actually increase the value of the amp, I'd replace the pots but keep the originals - when the time comes to sell up, put the original pots back in! Replacement pots aren't all that expensive, , Some say pull the knob and drip it around the shaft, some say find an opening on the back Nov 12, 2025 · A friend of mine has a Marshall amp that he thought was near dead, Can anyone point me to a good thread w/ detailed instructions for a newbie? I know it must exist on here somewhere, After searching this site I did find out about a product called Servisol, and someone else mentioned getting some Maplin Switch Cleaner to spray on the pots, but I'd still like a little more info, wait a few minutes before putting it back together, Marshall Amp Parts - Marshall Potentiometer Kits for amp repair and maintenance, That should clean things up, From the big picture, you might be able to shoot some cleaner into the holes on the side where the resin substrate tabs poke through the metal I didn't use it for a few months then on a jam pots were scratchy so after a good cleanup of the pots with contact cleaner it is back to sounding as it shou Keith does some maintenance on his Marshall Master Lead Combo 5010 1x12 solid state combo amp, wztfz uvszxp wccrf agxtyl fqss sgfqx lfn cjtw glwvfc azudxvcg