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Best way to clean vintage integrated amp?
#17297 08/12/03 07:29 PM
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I have a Yamaha vintage integrated amp. I opened it up, and sprayed out the dust. Someone told me to use contact cleaner on the inside and outside of all the switches and dials.

One of the switches is loose, here's a link to the inside of it (circular thing is the inside), how do I tighten this?

Anything else I should do?

http://members.arstechnica.com/subscriptors/x/saint/switchinside.jpg


------- Saint Harman Kardon AVR-120,Axiom VP100,Axiom M22Ti, Axiom QS8, Axiom EP-175
Re: Best way to clean vintage integrated amp?
#17298 08/12/03 10:49 PM
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What exactly do you mean by "the switch is loose"? Some of these old selector switches were designed to have a slightly loose feel to it.

I also suggest you apply some deoxidizer/cleaner/protector chemicals, such as the CAIG DeoxIT and/or ProGold.

[btw... does the amp sound "bright"? -- j.k.]

Re: Best way to clean vintage integrated amp?
#17299 08/14/03 08:05 PM
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Apparently now the amp's right channel fades out after prolonged use, but turning it off and back on again restores the sound.

Any idea why this might happen?



------- Saint Harman Kardon AVR-120,Axiom VP100,Axiom M22Ti, Axiom QS8, Axiom EP-175
Re: Best way to clean vintage integrated amp?
#17300 08/14/03 08:15 PM
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Could it be heat-related? -- if the sound is restored when you turn it off and then back on immediately (so no cooling down happens), then it is something else. At any rate, this sounds pretty bad...

Re: Best way to clean vintage integrated amp?
#17301 08/15/03 03:40 PM
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Just to throw my problem out there, I've got a Marantz 2220B where the right channel cuts in and out. I tracked it down to the Mono button; I can jiggle the hi-pass button next to the mono button and get the right channel back. It's as though the mono button is partially shorting out. Unfortuantely, Rat Shack doens't carry spray in contact cleaner in my area. Dumb question, I know, but where can I find that stuff?


I am the Doctor, and THIS... is my SPOON!
Re: Best way to clean vintage integrated amp?
#17302 08/15/03 04:11 PM
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try an appliance parts or an hvac supply house. i know we sell contact cleaner, so they must too.
dan

Re: Best way to clean vintage integrated amp?
#17303 08/15/03 04:45 PM
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Ken, PartsExpress.com carries all CAIG chemical products, which I can recommend.

Re: Best way to clean vintage integrated amp?
#17304 08/15/03 05:17 PM
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I had similar problems with my vintage integrated amp.... I used the Radio Shack stuff - but I wouldn't again. It's content is heavy on the lube, and light on the cleaner. For some things, like pots and switches and buttons, it might be fine in small doses, since the lube will help there - but you will still want a "pure" cleaner to get it clean first.

I guess my point is - count yourself lucky that they don't carry it... it's really not worth it.


Re: Best way to clean vintage integrated amp?
#17305 08/15/03 07:51 PM
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Well, I was dense enough to buy a cleaner pen when I was there (feeling desperate), and I've found it to be almost totally useless, except for cleaning Atari 2600 cartridges.


I am the Doctor, and THIS... is my SPOON!

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