AMP15 XP dissipator

[JorgeO]

Hello,

I understand the idea is to use the enclosure as a dissipator for the bottom mounted components.

My enclosure is quite plain (it was originally a PA amp I've purchased dead), made of sheet iron.

Would there be an advantage in using a piece of aluminum between the bottom components and the enclosure so heath would spread better?

Amp will be used at home.

Thanks,

[V-bro]

I would certainly do that, not only for the output fets, but the pre-regulator transistors get pretty hot after a while....

I know a heatsink for less than €10 that has the exact same size as the AMP15/AMP7 board. I posted the links to this a while ago somewhere. Will dig it up....

Here's THE perfect heatsink for AMP15/AMP7:
http://nl.farnell.com/fischer-elektronik/sk-105-100-sa/heat-sink-for-pcb/dp/4621440

If you feel like more cooling there's also one that is thicker.... and barely more costly...

[JorgeO]

I've seen your post re the dissipator.

Problem is the internal height height of the enclosure - only 7.5cm.

If I could assemble the PCB vertical, I would be able to use the enclosure dissipator.

I will see what's simpler - a thick piece of alum (not so easy in very small quantities) or another enclosure (of a dead PA amp).