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Topic: Cleaning pots with deoxit spray |
Bob Tuttle
From:
Republic, MO 65738
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Posted 16 Jun 2019 4:32 pm |
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| What is the best method to use deoxit spray to clean scratchy pots on a Peavey amp? How do you get the cleaner inside the pot? |
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Larry Dering
From:
Missouri, USA
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Posted 16 Jun 2019 5:07 pm
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| Bob, I pull the chassis and looking at the rear of the pot there is normally a little hole located near the bottom of it. Spay a light quick burst of cleaner with the straw type nozzle and rotate the pots fully back and fourth a bunch of times. I keep the chassis pots facing more downward to get good saturation of the solvent. Sometimes it takes a couple of quick bursts but not a heavy soaking. |
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Godfrey Arthur
From:
3rd Rock
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Posted 16 Jun 2019 6:15 pm
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I would use CRC-2-26 after the Deoxit.
It's one thing to clean the pot, but it needs a lube to keep the scratchy from coming back.
_________________
ShoBud The Pro 1
YES it's my REAL NAME!
Ezekiel 33:7 |
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David Nugent
From:
Gum Spring, Va.
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Posted 17 Jun 2019 3:51 am
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| There are two types of 'Deoxit' available; one includes lube as well as cleaner, the other is cleaner only. As mentioned, the one with lube is recommended. |
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Godfrey Arthur
From:
3rd Rock
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Posted 17 Jun 2019 5:34 am
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| David Nugent wrote: |
| There are two types of 'Deoxit' available; one includes lube as well as cleaner, the other is cleaner only. As mentioned, the one with lube is recommended. |
There have been some reports on older batches of Deoxit, that pots and switches would cut out from using the chemical.
Caig, since they listen to their customers said they've adjusted the formula and this was back in 2010. YMMV
https://www.gearslutz.com/board/geekslutz-forum/496690-deoxit-d5-no-longer-any-good.html
The CRC 2-26 is safe on plastics which should be of prime concern when using a cleaner on musical gear and is a lube. This is used by Hammond organ technicians at present since the organ is one mother of a complex system of all manner of electronics.
How many of us don't go through an entire can of cleaners and may have some sitting around that's 10 years old?
I'm sure some of us have noticed that after using a cleaner, the pot before using the cleaner had this smooth "resistive" taper to it when sweeping the knob, but after a cleaner dose, the pot loses the "drag" that was there before and the pot feels like an empty can.
What happened was the contact grease inside the pot was washed out with the spray cleaner.
Which makes me concerned about using an "all-in-one" cleaner/lube.
Is it going to clean?
Or lube?
Which is it going to do better?
Both? Hmmmm...
A better lube for electronics for pots and switches, some use this in restoring mega-buck studio mixer consoles is made by Electrolube.
I'm in the process of ordering some to use on my guitar and Leslie pots.
It's a little pricey but if you only need a little of it then you're in luck. A guy working on a Neve console would need a ton of this.
Here's a PDF if the link works.
https://www.electrolube.com/pdf/tds/044/CG53A.pdf
They sell this in tube size and by the gallon size up to 50 lbs (25kg) for industrial amounts.
5kg can about 11 pounds of the stuff
Here's a seller in the midwest, goes for $16 for the syringe size.
https://www.midwesttech.com/Electrolube-cg53a35sl-cg53a-contact-grease-35ml-syringe/
_________________
ShoBud The Pro 1
YES it's my REAL NAME!
Ezekiel 33:7 |
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Jack Hanson
From:
San Luis Valley, USA
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Posted 17 Jun 2019 5:36 am
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Stew-Mac markets a handy little gadget for spraying pots, but for about $22.00, it ain't cheap:
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Godfrey Arthur
From:
3rd Rock
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Posted 17 Jun 2019 5:46 am
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| Jack Hanson wrote: |
Stew-Mac markets a handy little gadget for spraying pots, but for about $22.00, it ain't cheap:
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Dang that looks like it's worth the price of admission if it really works.
Thanks for the headsup Jack!
But unless you have standard sized pot shafts, NOT METRIC, it won't work.
Here's the byline on Stewmac's site:
Simply remove the control knob, and screw the Pot Cleaning Cap on the shaft. An access hole guides your spray cleaner extension tube directly to the pot shaft. The cleaner flows down the shaft to where it's needed on the contacts inside the pot. A hole in the top of the cap lets you turn a split pot shaft with a screwdriver for thorough coverage.
Works with 3/8 x 32-thread, made in USA potentiometers: CTS, Allen-Bradley, Bourns, CentraLab, Clarostat, and others. It's not compatible with imported or metric-thread control pots (like Alpha).
If your gear has an Alpha pot, you're SOL. 
_________________
ShoBud The Pro 1
YES it's my REAL NAME!
Ezekiel 33:7 |
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ajm
From:
Los Angeles
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Posted 17 Jun 2019 7:07 am
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Jack, Godfrey: Regarding the Stew Mac thingy, you can get close with a socket wrench. Just plug off anywhere the spray might shoot out with a rag or tape or whatever else you can think of to improvise.
You can also do the same thing with a piece of rubber hose, like that found in vacuum lines in cars. The nice thing about this way is you can get different hose sizes for different shaft sizes. The hose also sort of "screws" on to the threads on the shaft if you get just the right size.
FWIW, I tried some Caig D100 on a sticky/intermittenet push button switch a while back. Maybe I got the wrong stuff or whatever, but it didn't work for me.
I had a can of pot cleaner/lubricant from Radio Shack, used it, and it did the trick.
As was mentioned earlier, the SAFE FOR PLASTICS label is very important. |
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Jim Kennedy
From:
Brentwood California, USA
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Posted 17 Jun 2019 9:42 am
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I use Deoxit 2 step process. Deoxit cleaner and then Deoxit lubricant. Works well unless the pot is really worn.
_________________
ShoBud Pro 1, 75 Tele, 85 Yamaha SA 2000, Fender Cybertwin, |
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