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Thread: TUBES

  1. #1
    Little Dreamer EVHBRENDO's Avatar
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    09.18.08 @ 04:32 AM
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    Hi , just about to replace my 5150 head power and preamp tubes .. I am thinking of using Mesa Boogie replacment 6L6s and 12ax7s... any opinions on Boogie tubes ...anyone tried these in a 5150.....Will I have to re-bias the amp or just plug in and go for it ?? Thanks ....

  2. #2
    Good Enough
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    03.30.13 @ 09:28 AM
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    If you're gonna change the power tube manufacturer it's always a good idea to rebias to get the best sound out of the head.
    As far as mesa tubes go, I used them at one time but stopped because their production jumped around so much.
    They tend to use everything from chinese to russian tubes and everything in between. There's no problem with that except they don't tell you or mark them as to where they're manufactured.
    What you usually hear when you go in to buy mesa's and ask the salesman or tech where they're manufactured is, "um, I'm not sure, but I think they could be...."
    Chinese tubes are easy to tell from the plating in the tube, but some of the others can get a bit murky.

  3. #3
    Eruption
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    12.14.17 @ 01:28 PM
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    I just replaced the preamp tubes in both my old Marshalls with JJ Tesla 12ax7s. . .and I honestly was blown away at the improvement.

    I think I'm going to retube my Bogner this weekend with them too.

    They sounded very musical and good even breakup.

 

 

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