2. amps-preamps
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Cleaning the equipment

Due to a preamp problem (separate thread) I had to take two large boxes out of my wall-shelf stereo system today. I placed them on our dinner table and took off their covers for the first time in four years. What did I see? An amazing collection of dust. Even more so, in a magnifying glass. Including some insects.

My system stands in a living room peopled by real people and a hairy cat and has a carpet. Smoking has been observed although not usual. We live in a city with pollution. Your record may be better than mine. But if you have components standing for many years, you should check for dust.

I used - carefully - a vacuum cleaner combined with a brush to clean up the worst. I found that the use of strong light and a magnifying glass was essential. I was careful not to bend or touch the components. Some can be charged for quite some time even after taking out the power cord. Vital components can be cleaned extra by using a spray-box with air, although I did not do it this time.

Perhaps others have relevant experience to share, including cleaning advice. My current preamp problem may have no relation whatsoever to this dust build-up. I have not idea about the electric capacity of dust threads - perhaps someone can fill me in. My audiophile sense tells me to get rid of it.
o_holter
atmasphere's avatar
atmasphere
12,085 posts
 
We sent a preamp to TAS for review back about 15 years ago or so. It died when hp's cat urinated in it so we got it back for repair. Yuck!

The only way to sort it out was the manual high-pressure car wash. While others were washing mud off their pickups and the like, I pulled the tubes and took the power supply of the preamp and gave it some good high pressure soap and rinse :) There was nothing else for it so I figured it was worth a shot.

I let everything drain and dry, making sure there were no odd 'residues'- including under the tube sockets (an easy spot to miss). It worked- after applying some contact cleaner/lubricant to the controls and switches the preamp ran fine (we let it dry for a good 3 days). We used that preamp for 6 months with no worries- and then used it at CES- it never gave us any worries.

However I would regard this sort of thing as a last resort :) - only if the unit has been contaminated.
singleendedsingle
664 posts
 
A vacuum cleaner with PCB Degreaser & cleaner spray does the trick.
marqmike
848 posts
 
Now I got it, take the cat to the cat box before you stick it in your equipment. I have a dog with a happy tail(a boxer) and I was thinking of tying a cat on its tail and it could just flip that hair duster all over the place in a matter of a few minutes. After some thorough a/b testing I will give it a review. I just want to disclose before the review I own the boxer and the cat. I don't want to be promoting these animals without a full disclosure.
o_holter OP
980 posts
 
Sorry for not keeping this worthy thread awake - busy with other things.

Yes cat hairs are a nuisance - really no good for pickups riding low in the track, like my Lyra titan i, according to the debate about how some reviewers had it far too straight and all that.

On the other hand, our cat Sasha is a very musical cat. There is no mistake, whenever I feel the music is good, the chance rises that Sasha comes along, walks a bit here and there, and even rolls on the floor, enjoying himself.

When the sunlight is almost horizontal, like it is in greater periods here up north (Oslo, Norway) you can really see how dust flows in the air and accumulates around the stereo. I have a big silk carpet since it improves my sound, but I'm worse off in my battle against dust. Perhaps an air conditioner is the way to go.
pryso
1,970 posts
 
Whether you prefer a shop vac or compressed air to remove the grime, a brush will help to loosen dust and dirt. I bought a package of stencil brushes with an assortment of sizes. I prefer them to regular paint brushes since they are much stiffer and make dry "scrubbing" easier.
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