I found these two heatsinks at my local surplus store. But no clue what the rating is on these. Also on order are some Semisouth SJEP120R125 so I need to figure out if these heatsinks are large enough for a stereo amp. I am a tube guy and this is my first try at a diy solid state amp. Thinking either on a J2 or a F6. Hopefully by the looks of them it should be ok for either amp. Is this wishful thinking on my part?
Alfredo
Alfredo
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They look great but, Ideally the best way to use them would be to cut them in two vertlcle 6" tall sinks/ch.You always get the best efficeincy without fans etc. when you orient it with verticle fins but unless specifically made for a long configuration (greater space between fins) 6"-8" is all that would be useful with those. I have a similar Fischer model that does 80-90W at about 5.5wx6dx8h.
I might guess you could do about 100-120W without going over 55C on the sink if they were side by side and 6" high. Of coarse YMMV. Maybe there will be a consencus estimate that will get you going
I might guess you could do about 100-120W without going over 55C on the sink if they were side by side and 6" high. Of coarse YMMV. Maybe there will be a consencus estimate that will get you going
If you tell a local metal supplier what you need done (cut in half), who knows, they may be able to cut it for a small charge on their stock saw and maybe even clean up the sawcut on a mill, or direct you to a machine shop? Ask around...
A six inch tall amp will be perfect use of them.
A six inch tall amp will be perfect use of them.
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