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Rig Builder to the pro's Dave Friedman of Rack Systems Ltd talks tone.
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My dirty Shirley just powered down in the middle of olaying

Fri, Sep 04, 2020 10:15pm

Hi all, just looking to see if anyone has advice as to where to start. I was playing my dirty Shirley, nothing to loud, through a ua ox amp top box and right in the middle it just turned off. Indicator light off and no sound. I checked all connections and wall was good. I gave it a few minutes and turned it back on and nothing. I checked the fuse and it appears to be fine...could this be a tube failure or something else???

Re: My dirty Shirley just powered down in the middle of olay

Sat, Sep 05, 2020 8:14am

Did you check both fuses? The mains fuse is just under the power cord socket....little slide out drawer type of thing.
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Re: My dirty Shirley just powered down in the middle of olay

Sat, Sep 05, 2020 8:16am

Thanks for the tip! I just checked that area as well and that fuse does look a little beat up. But I assume if the fuse looks beat up it’s a sign of something else going on? Typically the tubes? Just trying to find out where the buyers points are on the chassis as I found the trim part but just don’t know where to connect my multimeter?

Re: My dirty Shirley just powered down in the middle of olay

Sat, Sep 05, 2020 9:14pm

cameron711 wrote:Thanks for the tip! I just checked that area as well and that fuse does look a little beat up. But I assume if the fuse looks beat up it’s a sign of something else going on? Typically the tubes? Just trying to find out where the buyers points are on the chassis as I found the trim part but just don’t know where to connect my multimeter?

There are no bias points. Pick up a bias rite or a test probe
Last edited by LP Freak on Sat, Sep 05, 2020 9:23pm, edited 1 time in total.

Re: My dirty Shirley just powered down in the middle of olay

Sat, Sep 05, 2020 9:19pm

Looks like it was just rectifier tube. Thanks for the help and info!
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