Covers on or off?

Discussion in 'Tube Audio' started by manu et deo, Dec 27, 2017.

  1. manu et deo

    manu et deo I'm loving it! Subscriber

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    Is there a consensus or is it just what floats your boat?
     

     

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  2. triode17

    triode17 Well-Known Member

    Messages:
    973
    Cover off. It runs cooler and looks nicer. Gotta' see that glow! Plus, I don't have covers for most of my amps.
     
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  3. peterh

    peterh AK Subscriber Subscriber

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    1,791
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    cover on. Keeps cats and falling debris from the innards
     
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  4. maxhifi

    maxhifi AK Subscriber Subscriber

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    Covers off, except when it exposes high voltage! I don't like removing screws to change a tube.
     
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  5. jaymanaa

    jaymanaa AK Subscriber Subscriber

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    Children and or curious pets, and maybe for shielding on a preamp is the only reason I'd run any cover that makes things run hotter. Heat is the necessary evil with tube gear. It kills stuff like caps and resistors IMHO, so I try to get by with as little as possible.
     
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  6. triode17

    triode17 Well-Known Member

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    973
    BTW, I have no cats or kids to protect.
     
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  7. manu et deo

    manu et deo I'm loving it! Subscriber

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    What about tube covers?
     
  8. MannyE

    MannyE Exterminate! Subscriber

    Messages:
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    Naked as naked can be. I had a little computer fan that would blow "cool" (miami beach) air across them when they were on. And you just can't beat that tube glow!

    My reasons are two-fold. I like the way it looks and I believe they will run cooler and last longer. I don't know if that second part has any real technical merit though.
     
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  9. jaymanaa

    jaymanaa AK Subscriber Subscriber

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    I only use those as needed, but I am guilty of using some of the fancy type heat dissipating jobs from PC. I think they look cool on a custom build that has the preamp tubes exposed, plus they would do some shielding I guess as well as getting rid of heat. That said, tubes like 12AX7s just don't make much heat. I can't begin to count the Mullards and Teles that I've tested in old Dynaco gear that had NO vents in the covers at all. Talking about stuff like PAS preamps and such. They always test good?
     
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  10. Chrisxo55441

    Chrisxo55441 AK Subscriber Subscriber

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    Off i hate the burn marks that get left on the covers
     
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  11. Lavane

    Lavane AK Subscriber Subscriber

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    Cover on with the preamp I built. No cover an any of my amplifiers. Three are console pulls, so never had covers. The SET I built doesn't. And I didn't buy one for the ST-70 I put together. If the bias adjustments were on the front of the ST-70 like the test points are I would probably have bought a cover for it.
     
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  12. drtool

    drtool It might get loud In Houston Subscriber

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    No kids or pets, naked.
     
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  13. s-petersen

    s-petersen Scott Subscriber

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    Covers off if the amp looks nice, covers on if it looks ratty
     
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  14. jaymanaa

    jaymanaa AK Subscriber Subscriber

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  15. triode17

    triode17 Well-Known Member

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    Only for preamp tubes that need to be shielded. i.e. - high gain.
     
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  16. manu et deo

    manu et deo I'm loving it! Subscriber

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    Like 12ax7?
     

     

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  17. bberkom

    bberkom AK Subscriber Subscriber

    Messages:
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    I leave the cover on my ST-70 for the most part. The last thing I want to do is bump a tube, or worse the driver board, and blow up the amp or myself or one of my friends. It's in a medium traffic area in my living room, not a dedicated listening space. The wife says she likes it better with the cover too, so there you go.
     
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  18. Lavane

    Lavane AK Subscriber Subscriber

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    Mine is in a corner, so no traffic. But my wife would like it better if I bought a cover.:D
     
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  19. Djcoolray

    Djcoolray Addicted Member

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    A rocks throw from JBLM !!!!
    No cover....

    Home alone !!!!!
     
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  20. Lavane

    Lavane AK Subscriber Subscriber

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    I agreed to it, sorta. I just haven't decided on the black one or the brown. :rolleyes:
     

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