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Weird amp issue?

Posted: Sat Jul 21, 2012 9:22 pm
by tuffteef
http://www.4shared.com/mp3/mNXMmCdR/7_22_12_11_08_AM.html?


so while my fender deville is in need of a retube its making this weird rain on a tin roof windy sound when i turn my volume down and drops in a out whenever the hell it wants


any clues as to why its doing this

Re: Weird amp issue?

Posted: Sat Jul 21, 2012 10:56 pm
by metalmariachi
Resisters on the preamp tube plates can cause this.

MM

Re: Weird amp issue?

Posted: Sun Jul 22, 2012 4:04 am
by tuffteef
plate load resistors possibly kaput?

Re: Weird amp issue?

Posted: Sun Jul 22, 2012 11:27 am
by metalmariachi
Yup, all those neat but unwanted sounds, popcorn, babbling brooks, bacon are usually the plate load resisters.

MM
If some one made a pedal that did that you’d want it LOL.