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Old 24th July 2012, 07:56 PM   #1601
a.wayne is offline a.wayne  United States
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Yeah Imix, wooo hoo out of excuses now ....
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Old 24th July 2012, 08:09 PM   #1602
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I must say I appreciate the patience. It has been a cumbersome task to some degree. OTOH, I have been listening to the F5T with the DCB1 in front for a couple of months now and if wasnt for the fact that I have an audio addiction, I could easily stop here and move on to other parts of the system. The synergy between the two in my system is wonderful. If you plan on the F5t, I would highly suggest the DCB1 or the cascoded BF862 version by Juma in the F5 preamp thread. The combo is precise, quiet, and balanced top to bottom. The F5t will push my XXLS Peerless 12" woofers all day without breaking a sweat. THe diodes dont even get slightly hot, although this is in free air. As soon as the rest of the GB components come in, will build a final version of the F5T in either V2 or 3. It is my hope that if the GB goes well, and everyone follows though, that this amp will be auctioned with the proceeds going to DiyAudio or AmpCamp or something to do with this site.
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Old 24th July 2012, 08:16 PM   #1603
a.wayne is offline a.wayne  United States
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Which version did you build again Buzz, its different from Toecutter , Yes ..?
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Old 24th July 2012, 08:22 PM   #1604
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I used TeaBags boards. They fit perfectly on that 4" x12" piece of aluminum in the case. I think i will try 3 output pairs of V3 just because i want to keep dissipation down. If i can get ahead, I will try to measure distortion and all tha jazz. No promises, at least not any time soon.
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Old 24th July 2012, 08:58 PM   #1605
imix500 is offline imix500  United States
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Quote:
Originally Posted by a.wayne View Post
Yeah Imix, wooo hoo out of excuses now ....
Ha! Yeah, now I guess I need to get serious about installing an a/c unit in the workshop for this Nashville summer heat.
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Old 24th July 2012, 09:34 PM   #1606
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Awesome Buzzforb!! thanks for your work. I do appreciate everyone contributing to the GB process.
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Old 24th July 2012, 10:13 PM   #1607
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Imix, your PM is full.
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Old 25th July 2012, 12:01 AM   #1608
imix500 is offline imix500  United States
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Sorry Buzzforb, it was donation time again.
It should go through now.
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Old 25th July 2012, 07:56 AM   #1609
Variac is offline Variac  United States
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The diyAudio Store (USA) soon to stock chassis – requesting your feedback!

we'll have 4u x 300, 5Ux 400. The latter is probably the minimum for F-t
It's pretty big!


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The "Site Announcement" section of this forum has a thread about proposed case/heatsink offerings. They were also asking for feedback at one time.
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Old 25th July 2012, 11:18 PM   #1610
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hi,
If I have a aluminum heatsink 4" tall 2" deep(fins) and 12" long,How can I figure it's heat loss,If I have overlooked a thread please point me to it,also what about the material ,like bronze or copper,and the size of the heat spreader,isn't that the solid piece the fins connect to,let's say 1/2 inch,
Thank a lot!
NS
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