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Old 20th February 2013, 05:38 PM   #1631
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Quote:
Originally Posted by rookakoma View Post
Here are some photos of my finished F5 turbo monos.
Each Mosfet is biased to 0.8A.
The bases are 59C, the heatsinks are 57C.
The room temperature is 25C.
Wow, those are ridiculously awesome in so many ways! I may steal some of your design ideas for my next build.
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Old 20th February 2013, 06:55 PM   #1632
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Quote:
Originally Posted by rookakoma View Post
Here are some photos of my finished F5 turbo monos.
Each Mosfet is biased to 0.8A.
The bases are 59C, the heatsinks are 57C.
The room temperature is 25C.
Nice cable management! And I am glad you included the side shot otherwise I would not have understood what was happening there. I like how you nested the transformer in the back like that and flipped the cap bank under the rest of the components.

It unfortunately gives me ideas now...
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Old 20th February 2013, 07:09 PM   #1633
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Quote:
Originally Posted by rookakoma View Post
Here are some photos of my finished F5 turbo monos.
Each Mosfet is biased to 0.8A.
The bases are 59C, the heatsinks are 57C.
The room temperature is 25C.
Wow real nice
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Old 20th February 2013, 07:43 PM   #1634
WalterW is offline WalterW  Netherlands
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Rookakoma, that's inspirational work!
Nice how the alu and wood are blended together.. Also very nice how you mixed the N and P Mosfets.
Was wondering how you managed to make such beautiful holes in that thick alu base...
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Old 21st February 2013, 03:00 AM   #1635
coils is offline coils  United States
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Originally Posted by buzzforb View Post
Turn your sinks the other way. It has a great effect on dissipation. I wouldn't go much higher than .450 across Rs and that's assuming easy load.
The horizontal sinks were a design consideration based on some other materials I had. I had a se burning amp in the chassis, but couldn't get the bias I wanted. The f5c is working out well though, at .4 volts across .47R. Any higher, and it's a little hot.
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Old 21st February 2013, 03:03 AM   #1636
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cool. whatever works. It looks great either way
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Old 21st February 2013, 09:19 AM   #1637
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Originally Posted by oneplustwo View Post
Wow, those are ridiculously awesome in so many ways! I may steal some of your design ideas for my next build.
Thank you all.
Please feel free to use it.

Many thanks to Papa for the fantastic design.
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Old 22nd February 2013, 09:06 PM   #1638
Tiroler is offline Tiroler  Austria
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rookakoma,
The case layout and design of your amps is no less than splendid. Inspiring specimens, great workmanship too. I like it a lot!
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Old 22nd February 2013, 09:20 PM   #1639
zoe is offline zoe  United States
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Rookakoma
stunning!
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Old 22nd February 2013, 09:52 PM   #1640
6L6 is online now 6L6  United States
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Rookakoma - yes, those are among the best Pass amps that have ever been made. Truly inspirational work. Bravo!

(And the above comment by Tiroler is high praise indeed - his work is jaw-droppingly amazing...)
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