It looks like you're new here. If you want to get involved, click one of these buttons!
Subscribe to our Patreon, and get image uploads with no ads on the site!
Base theme by DesignModo & ported to Powered by Vanilla by Chris Ireland, modified by the "theFB" team.
Comments
First of all if the rack will have multiple units in it the amp must be at the top so it doesn't cook stuff above it.
I notice it has an internal load? If you could remove this and put it in a well heatsunk tin behind the rack somewhere that would remove some 15W from inside the case. Or perhaps you could just jack in a remote load? 15W might not sound a lot in this "Loud as F!" world but believe me, 15W in a confined space generates a lot of heat.
You will want a rack grill at the top and best one below the amp, depends how the "free air" convection is arranged. I am not a fan (Boom! Boom!) of fans in amps but sometimes there is no alternative. You can get "slot" fans for racks but they are probably quite pricey. You could probably adapt something from the computer cooling world?
Heatsinks are only of use if you can intimately attach them to the "hot bits" tricky with valves. Yes, if you could bolt 1,000sg mm of fins to the case, that would help but you want Compact & Beejew!
In fact it is not the valves that will suffer from overheating so much as electrolytic capacitors and to some extent, transformers (think on you 99% hot biasing wannabees!)
Sorry to be of little help.
Dave.
"Take these three items, some WD-40, a vise grip, and a roll of duct tape. Any man worth his salt can fix almost any problem with this stuff alone." - Walt Kowalski
"Only two things are infinite - the universe, and human stupidity. And I'm not sure about the universe." - Albert Einstein
As I suspected, "proper" rack fans are well into 3 figures. You could probably adapt a couple of these..
https://www.google.co.uk/search?q=slot+cooler&biw=1093&bih=525&tbm=isch&tbo=u&source=univ&sa=X&ved=0ahUKEwjDzsqOlPDMAhULBsAKHYVfC-QQsAQIYg&dpr=1.25#imgrc=JAZmay6ONQ5Y7M%3A
to your purpose. Note, you want the fan to PULL hot air out of the rack and cool air must get in easily, preff' through a filter.
Dave.
Fan Kit Rack 19 "3U and 3 fans - Cablematic https://www.amazon.co.uk/dp/B00P1Q0F7Q/ref=cm_sw_r_cp_api_q92qxbDADV451