Replacing EL-34 pair

TStone2 · May 5, 2014

I need to replace a bad tube in my Stiletto Tridant head. Attached is the question: I need to replace the pair.....based on top view of head....

#1-#2 #3-#4 #5-#6. #3 is the bad tube. Do I replace #3 and #4 ?

talltxguy · May 5, 2014

Not if #3 & #4 are matched tubes and your replacement tube is the same as #3. What kind of tubes are you using and what are they rated? (Mesa yellows, GT #4, Tube Depot #32, etc.)

TStone2 · May 5, 2014

talltxguy. Spec for the #3 is Mesa EL-34, STR 447, 05 AC Yellow. Pretty sure all the rest are the same color code.

Thanks, TS

TStone2 · May 6, 2014

Last night I swapped out the #3 bad tube to the #4 socket and the #4 to #3 socket, the #3 tube failed to light in the #4 position as well so I'm fairly certain it's the tube.

Any help on which positions (matched pair) to replace (#3 obviously) would be greatly appreciated.

Authorized Boogie · May 6, 2014

The tubes are paired in the following manner: 1&6, 2&5, 3&4

Thanks!

TStone2 · May 7, 2014

Authorized Boogie said:
The tubes are paired in the following manner: 1&6, 2&5, 3&4

Thanks!

Thanks for the info, AB! Time to go buy that pair.

TS

Replacing EL-34 pair

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Replacing EL-34 pair

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