I recently fitted the power stage of my Fender Hot Rod Deluxe with a pair of Ruby 6L6GCMSTR tubes. I gave a full review of the Ruby tubes in an earlier blog post. What I want to discuss here is the bias setting for the power stage in a Fender Hot Rod Deluxe.
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How to diagnose and fix tube rattle on a guitar amplifier
My Fender Hot Rod Deluxe III recently developed a glassy rattle. It was only evident at certain frequencies – prevalent when I strummed low chords or struck low notes. At first the rattle was faint and only occurred occasionally. But over a number of weeks the rattle grew in prominence and occurred almost every time I played a low chord or note.
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