LSS tube layout

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Ducky

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Jun 4, 2005
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In front of my LSS
Hi All,

What is the power tube layout for the LSS? from the rectifier, is it 1->4

Also, when in 5W & 15W which tubes are used? Is it always the outer pair and the inner pair?

The reason I ask, is I never switch to the 30W, so I want to rotate my tubes so they last longer.

Cheers
 
Here is a link to the LSS pdf

shows the layout and lots of other stuff
 
Just talked with Chris @ Mesa,

He said that in 5W, only the tube closest to the rectifier is used. In 15W it's that tube plus the next one down.
 
so if the amp is run in the 15 watt mode, and the two power tubes get worn and need to be replaced, is it o.k. to swap just those two, or should it be done as a set???
 
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