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Audio and Video Talk
Vinyl
VALVE AMPS - How important is ventilation?
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<blockquote data-quote="Ampdog" data-source="post: 65617" data-attributes="member: 144"><p>YES!</p><p></p><p>One tends to forget that maximum dissipation - er - well, of all components, not just valves - is usually specified where the <em>constant</em> surrounding air is at 25 degrees C. Where temperature itself is specified as with capacitors, that is the component temperature, which may be difficult to maintain in hot under-chassis conditions, etc. A small fan only can make quite a difference - but where does one then get a quiet fan again - and so on.</p><p></p><p>The temperature on a big power valve's glass surface can reach 250 degrees C at full blast ....</p></blockquote><p></p>
[QUOTE="Ampdog, post: 65617, member: 144"] YES! One tends to forget that maximum dissipation - er - well, of all components, not just valves - is usually specified where the [I]constant[/I] surrounding air is at 25 degrees C. Where temperature itself is specified as with capacitors, that is the component temperature, which may be difficult to maintain in hot under-chassis conditions, etc. A small fan only can make quite a difference - but where does one then get a quiet fan again - and so on. The temperature on a big power valve's glass surface can reach 250 degrees C at full blast .... [/QUOTE]
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Audio and Video Talk
Vinyl
VALVE AMPS - How important is ventilation?
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