Audio Asylum Thread Printer
Get a view of an entire thread on one page
|For Sale Ads|
In Reply to: RE: How hot is too hot? posted by vinnie2 on June 02, 2017 at 16:22:14
110 should definitely not be too hot to keep your hand on. You might want to check your measurements.
Caps are rated at typically 85 degrees to 105 degrees Celsius, which would be +185 degrees Fahrenheit, though it is at a 1000 hour life typically. Keep the caps under 150 degrees.
Drill some vent holes.
Been there done that. Don't think it will be enough though, and I am running out of room with all that stuff underneath to punch too many more holes in the to plate. Might be able to do some through the wood sides though. That could help.
I can tell you you won't keep your hand on 125 degrees very long. As I said, the temps vary, the whole top isn't the same. I spot checked it several times, but it isn't a lab grad unit. I use it for my wood fired oven.
Another way to make vents is the use a hacksaw and cut several slots on one angle of the bottom, then on the opposite side at the top.
The cross flow will certainly cool it down.
I did this on a headphone amp using (3) 6SN7GT.. IT was much cooler afterwards.
Cutting across the angle makes it easy to do.
The bottom is open and the chassis is on 1/2" high feet. I think the only place left for more vents are the side panels.
When I build amps these days I raise the top plate off the side panels with a washer at each screw, enough for air to escape. It's a bit hard to tell from your photo, but you might be able to raise your top plate a tiny little bit, either with washers on the screws or some other mechanism. If you can get some air moving through the small gap then the total for all four sides would be considerable and it will be virtually invisible.
I like the sound of that Ray. Simple, but possibly quite effective. I will see what I can do. Thanks!
Post a Message!
This post is made possible by the generous support of people like you and our sponsors: