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Easily replace your 12 AX7A Tube of your Art Tube MP Pre Amp without difficulties

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art tube preamp won't power on -- will a bad tube cause this?

2006 ART tube preamp

no lights come on with either phantom power or a proven 9 volt AC power source

can this be a symptom of a bad tube?

thanks!

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@paulbiere probably not. I suspect the tubes are audio tubes driving the amp but not the power. If you have no sign of life start looking at the power supply/circuit. Disassemble it using this guide Art Tube MP AMP 12 AX7A Tube Replacement and take a look for obvious damaged components, lose wiring etc. Post some good images of your boards etc. with your question. That will allow us to see what you see. 在已经存在的问题里加入图片

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指南

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难度:

非常容易

2 - 5 minutes

Art Tube MP AMP 12 AX7A Tube图片

指南

Art Tube MP AMP 12 AX7A Tube Replacement

难度:

简单

35 - 40 minutes

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