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Author Topic: Ghost hum unless I touch strings in one amp in part of the house.  (Read 748 times)

5F6-A

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I  was playing my guitar and all of a sudden, the valve amp started humming unless I was touching a metal part.... tried through a different amp in a different room and no hum. Tried though a battery operated amp and there was no hum at all.... what's going on?

UPDATE: Tried the noisy amp in a different room with the same guitar. No hum at all either...
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Dave Sloven

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Re: Ghost hum unless I touch strings in one amp in part of the house.
« Reply #1 on: October 08, 2017, 01:09:10 PM »
Sounds like it might be the power in that room
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5F6-A

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Re: Ghost hum unless I touch strings in one amp in part of the house.
« Reply #2 on: October 08, 2017, 02:31:43 PM »
Thanks. Today the hum is gone completely! What the heck?
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Hammerheart

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Re: Ghost hum unless I touch strings in one amp in part of the house.
« Reply #3 on: June 21, 2018, 03:23:56 PM »
Dimmer switches can make pickups really noise at times. Did you have dimmed lights the room?
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gwEm

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Re: Ghost hum unless I touch strings in one amp in part of the house.
« Reply #4 on: June 23, 2018, 10:38:52 AM »
Some laptop power supplies make a load of hum too. Think about what you had switched on at the time.
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