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Old 25th September 2010, 04:18 AM   #281
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i have some chassis work yet to be finished with the F5, but partnered with the B1, the combo is fantastic:

http://i23.photobucket.com/albums/b3...5/IMG_5404.jpg
http://i23.photobucket.com/albums/b3...5/IMG_5406.jpg
http://i23.photobucket.com/albums/b3...5/IMG_5395.jpg

132,000uF in the remote PS + 44,000uF in the amp proper. unloaded PS V = 26.7V.
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Old 26th September 2010, 08:08 PM   #282
Puffin is offline Puffin  United Kingdom
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Default De-Liteful.....nearly

Lots of work still to do, but getting there.....slowly

Click the image to open in full size.
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Old 26th September 2010, 11:21 PM   #283
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Default Let there be light ! (and sound).

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Originally Posted by Puffin View Post
Lots of work still to do, but getting there.....slowly

Click the image to open in full size.
Nice job Puffin.....

Like the multi-parallel reservoir caps.
Def the way to go I think.

Cheers Simon.....
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Old 27th September 2010, 07:17 AM   #284
Vix is offline Vix  Yugoslavia
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Nice! There is one thing to be concerned, though. One row of capacitors is really close to the heatsink, and if it gets warm, capacitors get warm as well, and they don't like the heat. On the other hand, heatsinks look large enough, so maybe they won't get so hot after all.
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Old 27th September 2010, 02:30 PM   #285
jleaman is offline jleaman  Belgium
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Some very nice stuff in here guys, great work keep it all up!
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Old 27th September 2010, 03:06 PM   #286
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Quote:
Originally Posted by Puffin View Post
Lots of work still to do, but getting there.....slowly

Click the image to open in full size.
It's delite-ful, it's delicious, it's de-lovely
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Old 27th September 2010, 05:36 PM   #287
Puffin is offline Puffin  United Kingdom
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Originally Posted by The Space Egg Corp View Post
Nice job Puffin.....

Like the multi-parallel reservoir caps.
Def the way to go I think.

Cheers Simon.....
Simon. I have the same concerns. However space is at a premium, so I will have to see how it goes. I have very efficient speakers 97dB so it may not get too hot.

Rob.
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Old 27th September 2010, 05:36 PM   #288
Puffin is offline Puffin  United Kingdom
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It's delite-ful, it's delicious, it's de-lovely
Why thang you kindly Sir.....
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Old 27th September 2010, 08:40 PM   #289
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Originally Posted by Puffin View Post
Simon. I have the same concerns. However space is at a premium, so I will have to see how it goes. I have very efficient speakers 97dB so it may not get too hot.

Rob.
It has more to do with biasing and Vds than the efficiency of your speakers.
This is a class A amp.

You still might be ok though, they are quite big heatsinks, and I am guessing the dissipation through each device is no more than 60W.

If it is too hot it wouldn't cost too much to buy some wider aluminium plate to make tha case wider. You can still use the narrower plate later on when you decide to buy another couple of heatsinks and build mono blocks.

Last edited by Melon Head; 27th September 2010 at 08:43 PM.
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Old 27th September 2010, 09:34 PM   #290
Puffin is offline Puffin  United Kingdom
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Originally Posted by thanh1973 View Post

If it is too hot it wouldn't cost too much to buy some wider aluminium plate
Good idea thanh.
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