Quencho092
New member
i was thinking of getting a really old computer power supply and rigging my bandmaster with fans to cool it. I'd just strap the fans onto the back to suck hot air out of the tubes. Would this be good to help preserve tube life?
tube cooling
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Metalman_666
Well-known member
Re: tube cooling
That sounds like a good idea in theory, but would you actually be able to keep the fans out of the way? And also keep them from breaking or anything?
That sounds like a good idea in theory, but would you actually be able to keep the fans out of the way? And also keep them from breaking or anything?
Quencho092
New member
Re: tube cooling
they're high cfm (119 CFM) computer 120mm fans, i plan on mounting them on the rear grille of the head with velcro on each corner of the fan. I'd just put the power supply on top of the amp or on the floor.
they're high cfm (119 CFM) computer 120mm fans, i plan on mounting them on the rear grille of the head with velcro on each corner of the fan. I'd just put the power supply on top of the amp or on the floor.
Quencho092
New member
Re: tube cooling
do cooler tubes run better or simply last longer?
do cooler tubes run better or simply last longer?
Quencho092
New member
Re: tube cooling
if i put fans behind the tubes it'd keep them from getting too hot, as they create the heat. I think the peavey classic 50 has a fan system to blow hot air out in order to keep the tube temperature under control.
proxy said:
if i put fans behind the tubes it'd keep them from getting too hot, as they create the heat. I think the peavey classic 50 has a fan system to blow hot air out in order to keep the tube temperature under control.
proxy
New member
Re: tube cooling
Yes that makes sense as far as protecting other components, but these are vacumm tubes. Think about your thormos, it is also using vacumms to insulate against tempertuare changes, so outside of cooling the glass I don't know how much of an effect you'd actually have.
Yes that makes sense as far as protecting other components, but these are vacumm tubes. Think about your thormos, it is also using vacumms to insulate against tempertuare changes, so outside of cooling the glass I don't know how much of an effect you'd actually have.
Quencho092
New member
Re: tube cooling
vacuums do protect against temperature changes as cold air cannot enter the tube, but physically speaking two objects of different temperatures will always strive to reach equilibrium. The thermos works because the insulating material is not only air tight, it is a terrible heat conductor, so not to pass heat to the food. Meanwhile the inside is a good heat conductor so it helps maintain the cool temperature.
As a matter of fact, fanning the tube will have more of an impact because you reduce temperature and pressure in the tube, each of which are directly related. When both temperature and pressure decrease, the relative heat is much less. Less heat, less pressure>even less heat
vacuums do protect against temperature changes as cold air cannot enter the tube, but physically speaking two objects of different temperatures will always strive to reach equilibrium. The thermos works because the insulating material is not only air tight, it is a terrible heat conductor, so not to pass heat to the food. Meanwhile the inside is a good heat conductor so it helps maintain the cool temperature.
As a matter of fact, fanning the tube will have more of an impact because you reduce temperature and pressure in the tube, each of which are directly related. When both temperature and pressure decrease, the relative heat is much less. Less heat, less pressure>even less heat
Marinblues
New member
Re: tube cooling
The tubes have to be hot so they can function properly. Why do you need to cool them? Are you finding the heat excessive?
The tubes have to be hot so they can function properly. Why do you need to cool them? Are you finding the heat excessive?
