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Vintage DOD Eq610 equalizer question

Discussion in 'Effects [BG]' started by Big AL-Muncher, Mar 10, 2018.


  1. I just powered up this thing, after it sat for 30 years. It is making a slight humming sound. Even acoustically without the amp, when I turn on the giant power switch, I can hear the power supply(?) humming inside it, kind of like a florescent light (ballast) sound? The power cord is 3 pronged/110 volt. Is this humming possibly a ground issue, or is this thing just old and crappy, or.... any ideas? Thanks
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    Last edited: Mar 10, 2018

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