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2002 DSL 401 question....

Discussion in 'Introduce Yourself' started by Eddie S, Sep 14, 2021.

  1. Eddie S

    Eddie S New Member

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    Briefly....I removed all 8 of the tubes from my DSL 401. I discovered that only 1 preamp tube was actually bad (V1). I'm replacing it with a Tung Sol. My question. If I put the exact same power tubes back in, will I need to rebias it. I plan on checking it, just to know what my value is...but I was wondering...Thanks to any and all responses....
     
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  2. fitz288

    fitz288 Well-Known Yinzer Silver Supporting Member

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    rahndahbaht dah 'Burgh
    :welcome: to the forum.
    I don't have that amp, but even if you put the power tubes back in the same sockets they came from, it's probably still a good idea to re-bias.
    They may not have been balanced when they came out.
    Bias could get better or worse depending on dumb luck.
    Best to just recheck and go from there.
     
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  3. Eddie S

    Eddie S New Member

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    Yeah...checking/verifying is always a good idea. I appreciate your timely response to my question.
     
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  4. Eddie S

    Eddie S New Member

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    Yeah...that makes good sense. Check it anyway! I appreciate your timely response to my question...and thanks for the "welcome". I found this HUGELY helpful site weeks ago, but just signed up today....
     
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  5. Mitchell Pearrow

    Mitchell Pearrow Well-Known Member VIP Member

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    WELCOME TO THE FORUM
    :cheers:
    :welcome:
    Cheers
    Mitch
     
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  6. Eddie S

    Eddie S New Member

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    Thank You!
     
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  7. DreamerDeceiver

    DreamerDeceiver Well-Known Member

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