Fans have proved AMAZINGLY valuble....
I was running 60mv bias (approx 88ma of bias = about 3.7w of dissapation per device...heatsink sat at about 58deg after 3 hrs...
I added a 12v 8cm fan running @ 9v...
Now i have 215mv bias (!) on a 2.7c/w heatsink, with fan, the heatsink is a pretty stable 48deg - i am now running 316ma of bias per device... dissapating about 13.6w/device... about 27w for the heatsink!
That's with 43v rails... just in case my maths is wrong... it's not heating the room, but considering it's running 1 set of outputs!!
Not bad! (the outputs would probably blow if i cranked it... but i'm not going to!)
Aaron
I was running 60mv bias (approx 88ma of bias = about 3.7w of dissapation per device...heatsink sat at about 58deg after 3 hrs...
I added a 12v 8cm fan running @ 9v...
Now i have 215mv bias (!) on a 2.7c/w heatsink, with fan, the heatsink is a pretty stable 48deg - i am now running 316ma of bias per device... dissapating about 13.6w/device... about 27w for the heatsink!
That's with 43v rails... just in case my maths is wrong... it's not heating the room, but considering it's running 1 set of outputs!!
Not bad! (the outputs would probably blow if i cranked it... but i'm not going to!)
Aaron
amazing
If that price is real, someone should start a group buy.
You only need about 16"/40cm to make a ksa50 or 32"/80cm for a ksa100.
I think, maybe the price is just too good...I would expect to pay that for a foot, which would only give you 3 sides of the wind tunnel...
Stuart
If that price is real, someone should start a group buy.
You only need about 16"/40cm to make a ksa50 or 32"/80cm for a ksa100.
I think, maybe the price is just too good...I would expect to pay that for a foot, which would only give you 3 sides of the wind tunnel...
Stuart
Hi All-
I do not have enough sets to sell to all the requestors.
I am open to suggestions. One person suggested ebay and the proceeds go to the forum.. I like that idea and would post the results of the auction and the payment to the forum for accountability.
But other suggestions are welcome.
I do not have enough sets to sell to all the requestors.
I am open to suggestions. One person suggested ebay and the proceeds go to the forum.. I like that idea and would post the results of the auction and the payment to the forum for accountability.
But other suggestions are welcome.
rabstg said:Hi All-
I do not have enough sets to sell to all the requestors.
I am open to suggestions. One person suggested ebay and the proceeds go to the forum.. I like that idea and would post the results of the auction and the payment to the forum for accountability.
But other suggestions are welcome.
eBay is a very good idea, just post a link on this thread to all those who want it and they can battle it out.
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