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Topic: Electronics Tone Question |
Larry Jamieson
From:
Walton, NY USA
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Posted 19 Jan 2003 9:24 am |
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| My Cougar steel has a nice tone. I have had it for about a year. On a gig one night, the usually clean, full tone seemed to not have much bottom in it, and had a treble like hard edge. I set it up at home and wondered if this was an amp problem (PV Nash400). When I was playing with it, I accidently hit the cable at the input jack on the side of the guitar, and the tone got better, so I cleaned the input jack on the guitar and the tone was back. Next week, it was back on the treble side, so I changed the jack, put in a new switch craft 1/4" on the guitar. Tone was good again. I know that when two unlike metals are in contact, (Steel jack, aluminum end plate), you get an electro-chemical reaction that causes corrosion or plating of some kind??? Is this what is happening, and is ther any solution? Thanks to any of you electronics engineers who have any insight or experience with this... Larry Jamieson, Walton, NY Cougar SD-10, 3/5, Nash. 400, Goodrich pedal |
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Peter
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Posted 19 Jan 2003 1:41 pm
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My guess is that it was just a loose connection. Your signal can become "one-legged" which means that maybe the earth came loose, resulting in a very thin sound.
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Peter den Hartogh-Fender Artist S10-Remington U12-Hilton Volume Pedal-Gibson BR4 lapsteel-Guya "Stringmaster" Copy-MusicMan112RP-Peavy Rage158- - My Animation College in South Africa
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 19 Jan 2003 2:46 pm
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Yes, you can get a bad connection, especially with dissimilar metals. Under humid conditions, the different metals cause what is called an "galvanic reaction", where a small voltage is generated, and that causes rapid oxidation. The oxidation can cause an increased resistance between the metals, and sometimes even a slight semiconductor effect. We used to get these problems a lot years ago because the plugs, and sometimes the jacks, were unplated brass. The nickel plating (or sometimes gold plating) used today reduces the problem, but it can still crop up occasionally.
Bottom line is to inspect these mechanical connections regularly, and make sure they are clean and tight. Anytime you have a sound problem, the first thing you should check is the cords, plugs, and the jacks.[This message was edited by Donny Hinson on 20 January 2003 at 03:53 AM.] |
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Derrell Stephens
From:
Shreveport, La. USA
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Posted 19 Jan 2003 3:17 pm
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| Don't forget about any switches that may be in the circuity, such as tone enable, or pickup selelction switches. |
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Larry Jamieson
From:
Walton, NY USA
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Posted 20 Jan 2003 5:29 pm
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| Thanks for the help and suggestions. We'll check all the cables, switches, etc.. Larry J. |
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Terry Downs
From:
Wylie, TX US
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