[Jukebox-list] 780 fuse blowing issue

Still trying to chase down the reason the amp fuse blows.  I replaced the 5Z3 tube for the chance that it might have a short as was suggested. That wasn’t the cause. I removed all plugs into the amp and made selections  and as I replaced one at a time as a process of elimination.  The fuse only blows when the speaker is plugged in.   Any help please. Thanks, Allen

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