Replacing EL-34 pair

[TStone2]

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]

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]

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]

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]

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

Thanks!

 

[TStone2]

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