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Luxman MB340 prefers "winged C"

Posted by tutor turtle (A) on November 9, 2006 at 10:42:49

In Reply to: **WARNING** KT88/6550/EL 34 -Amps with over 500v posted by tomw2 on November 4, 2006 at 18:27:42:

Light dawns on marble head!

I refitted a pair of Luxman MB340 for KT88, (when they stopped make their proprietary output tube).

I bought a set of Sovtec tubes about four years ago then I started having some really bad crunching sounds on power-up. So I stopped using my amp for a while, then I decided to swap out all the tubes starting with the pre-drivers, to no avail.

When I got to the outputs, I opted for the "winged C" because of the many recomendations I read about them

Mysteriously the evil crunching sounds went away, now I know precisely why.

Thank you Tom.

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