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noisy tube screamer when using ac adapter

11/12/2000 1:53 AM
matt ross
noisy tube screamer when using ac adapter
hi guys,  
my tube screamer is silent w/a 9volt battery. It gets noisy as hell (hisssssss...) when I use an ac adapter. Please HELPssssss...
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11/13/2000 12:00 AM

Is is AC? It should be 9vdc... Also there is some pwr supply filtering in the unit itself, but sometimes a wallwort that is poorly filtered( or not at all) will make a pedal blow some noise.

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