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Commercial home amps have internal heatsinks with very thin fins.
Yet heatsinks from Jaycar etc have rather thick fins.
Which actually works better, thin or thick fins??
I would expect that the heatsink with the most surface area per unitCommercial home amps have internal heatsinks with very thin fins.
Yet heatsinks from Jaycar etc have rather thick fins.
Which actually works better, thin or thick fins??
I would expect that the heatsink with the most surface area per unit
volume would work best, all other things being equal.
tell it like it is !!"Franc Zabkar":
I would expect that the heatsink with the most surface area per unit
volume would work best, all other things being equal.
** Go read a book on heatsink design.
Its part of "analogue electronics" - the only real kind.
You fucking digital puke.
.......... Phil
Geez, dont hold back Phil !!
**There's no one, correct answer. The heatsinks you've seen usually take twoCommercial home amps have internal heatsinks with very thin fins.
Yet heatsinks from Jaycar etc have rather thick fins.
Which actually works better, thin or thick fins??
"Phil Allison" "Franc Zabkar":
I would expect that the heatsink with the most surface area per unit
volume would work best, all other things being equal.
** Go read a book on heatsink design.
Its part of "analogue electronics" - the only real kind.
You fucking digital puke.
Geez, dont hold back Phil !!
tell it like it is !!
Trevor,"S Roby" <email@gooble.gooble> wrote in message
news:hi_6f.2174$S24.152834@news.xtra.co.nz...
Commercial home amps have internal heatsinks with very thin fins.
Yet heatsinks from Jaycar etc have rather thick fins.
Which actually works better, thin or thick fins??
**There's no one, correct answer. The heatsinks you've seen usually take two forms.
1) A slab of flat aluminium bar, is (for want of a better term) 'planed', until very
thin strips of metal are formed, curved and away from the bar. The central bar is
reasonably thick and there's lots of surface area, so it works well.
2) A central bar of aluminium has an accordion shaped piece of aluminium bonded to
it, with approximately the same effect as #1.
Thick fins allow more thermal mass and, in some cases better heat transfer.
--
Trevor Wilson
www.rageaudio.com.au
**Sort of, however:"Trevor Wilson" <trevor@SPAMBLOCKrageaudio.com.au> wrote in message
news:435cb5d1@news.comindico.com.au...
"S Roby" <email@gooble.gooble> wrote in message
news:hi_6f.2174$S24.152834@news.xtra.co.nz...
Commercial home amps have internal heatsinks with very thin fins.
Yet heatsinks from Jaycar etc have rather thick fins.
Which actually works better, thin or thick fins??
**There's no one, correct answer. The heatsinks you've seen usually take
two forms.
1) A slab of flat aluminium bar, is (for want of a better term) 'planed',
until very thin strips of metal are formed, curved and away from the bar.
The central bar is reasonably thick and there's lots of surface area, so
it works well.
2) A central bar of aluminium has an accordion shaped piece of aluminium
bonded to it, with approximately the same effect as #1.
Thick fins allow more thermal mass and, in some cases better heat
transfer.
--
Trevor Wilson
www.rageaudio.com.au
Trevor,
what is the significance of thermal mass in a heatsink? With constant
dissipation isn't thermal mass irrelevant?
Heatsinks move heat in three ways - conduction, convection, and"Trevor Wilson" <trevor@SPAMBLOCKrageaudio.com.au> wrote in message
news:435cb5d1@news.comindico.com.au...
"S Roby" <email@gooble.gooble> wrote in message
news:hi_6f.2174$S24.152834@news.xtra.co.nz...
Commercial home amps have internal heatsinks with very thin fins.
Yet heatsinks from Jaycar etc have rather thick fins.
Which actually works better, thin or thick fins??
**There's no one, correct answer. The heatsinks you've seen usually take two forms.
1) A slab of flat aluminium bar, is (for want of a better term) 'planed', until very
thin strips of metal are formed, curved and away from the bar. The central bar is
reasonably thick and there's lots of surface area, so it works well.
2) A central bar of aluminium has an accordion shaped piece of aluminium bonded to
it, with approximately the same effect as #1.
Thick fins allow more thermal mass and, in some cases better heat transfer.
--
Trevor Wilson
www.rageaudio.com.au
Trevor,
what is the significance of thermal mass in a heatsink? With constant dissipation
isn't thermal mass irrelevant?
-Andrew M