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Thread: Heat dissipation Altec valve power amps?

  1. #1
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    Heat dissipation Altec valve power amps?

    Hi, I have a pair of Altec 1569a power amps built into some timber boxes just like the ones in the pictureName:  1569_boxes.jpg
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    Can anyone comment as to whether they will run too hot and shorten valve life etc etc.. any other issues..
    Or should be fine?
    I could potentially hook up some computer fans at the back.. or drill holes in the top.. though neither are ideal for obvious reasons.
    Just concerned.

  2. #2
    Senior Member Hoerninger's Avatar
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    Valves will produce a lot of heat which nust be dissipated, Too much heat will shorten valves lifetime.

    Fans might be a solution, but the valves should not be in a direct air stream.

    What about perforated grid on top and in the back?

    the pic shows how they did it before.

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    ____________
    Peter

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    open

    thanks Peter, the back is actually open not sealed, but the valves sit quite deep in the box as it is around 16 inches deep so i fear that wont offer much heat escape.I am loathe to put holes through the top of the unit or sink a mesh into it, but if i must I will.. I suppose these ones in the picture i posted (like mine) were done out of form over function...
    Quote Originally Posted by Hoerninger View Post
    Valves will produce a lot of heat which nust be dissipated, Too much heat will shorten valves lifetime.Fans might be a solution, but the valves should not be in a direct air stream.What about perforated grid on top and in the back?the pic shows how they did it before.Name:  amp.jpeg
Views: 267
Size:  34.8 KB____________Peter

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