My Mark III sounds like it's possessed!

rabies said:

LSD

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fome said:

I don't know if this is a common symptom, but my Mark III makes VERY peculiar noises randomly. It's usually a soft pulsating noise, but will modulate higher or lower in frequency arbitrarily. Often times, it sounds like it is distinctly laughing, other times it sounds like moaning. It does NOT sound like feedback. The sound will disappear if I put it into standbye for 10 seconds and turn it back on, but will return if I play anything and stop. Unplugging the guitar has no effect.

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JOEY B. said:

fome said:

I don't know if this is a common symptom, but my Mark III makes VERY peculiar noises randomly. It's usually a soft pulsating noise, but will modulate higher or lower in frequency arbitrarily. Often times, it sounds like it is distinctly laughing, other times it sounds like moaning. It does NOT sound like feedback. The sound will disappear if I put it into standbye for 10 seconds and turn it back on, but will return if I play anything and stop. Unplugging the guitar has no effect.

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Do you have anything plugged into the effects loop?

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mrd said:

Maybe it's picking up the radio?

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Buddy said:

Sounds like a tube oscillating . Could be anything from dirty pins to a resistor or cap drifting\going out of spec .

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fome said:

Buddy said:

Sounds like a tube oscillating . Could be anything from dirty pins to a resistor or cap drifting\going out of spec .

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I was thinking along these lines too. But damnit, I really don't want to have to take this to a tech and lose a week.

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