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Old 9th March 2013, 03:33 PM   #1731
NSP is offline NSP  Finland
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Originally Posted by pcb121055 View Post
Great work on the cover! Would the value of such a cover be to reduce stray fields or the transformer's mechanical noise?
The transformer that I bought is designed for audio applications and have a minimal magnetic leakage so the cover is probably not necessary. I made it because the inside of the amp will be more "clean" looking in my opinion. If it also shields the trafo a little I consider that a bonus.
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Old 9th March 2013, 04:25 PM   #1732
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That thick, it sure does.
(but an aluminum pot cover does too)
It doesn't count how one deals with winning, but how to handle a loss (© DjT)
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Old 9th March 2013, 04:33 PM   #1733
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I'm with you 100%. It does look great and worth the effort on that basis alone. I was just curious because it looks tough to have so many diverse elements in a case without interference. I wondered if some level of scrutiny for their physical arrangement wasn't worthwhile. Then... I was thinking way back to my EE transmission line lab and our measured results for line-of-sight, ungrounded shields were not very good. Someone here may have some real emag experience to refute my observation but maybe an insulated cover would be mainly cosmetic? but hey, from a guy that buys chrome valve covers... i still like it
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Old 11th March 2013, 09:53 AM   #1734
bcmbob is offline bcmbob  United States
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May not be the right thread, but has anyone created a Mouser BOM or cart for the F5 V2.8 boards? Would save a bit of time and help avoid mistakes.
Bob M.
"Arrange Whatever Pieces Come Your Way."
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Old 20th March 2013, 04:17 PM   #1735
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Default F5T V2

Finally everything is finalized.

It has a bridge rectifier for the two channels as the original.

Built a soft start and a low noise fan at the top.

All tuned, and now it's just music.
Attached Images
File Type: jpg F5Td.jpg (80.2 KB, 1088 views)
File Type: jpg F5TG.jpg (148.4 KB, 1054 views)
File Type: jpg F5TI.jpg (201.5 KB, 1019 views)
File Type: jpg F5TK.jpg (115.0 KB, 953 views)
File Type: jpg F5TH.jpg (165.7 KB, 937 views)
File Type: jpg F5TM.jpg (182.4 KB, 489 views)
File Type: jpg F5TN.jpg (190.9 KB, 485 views)
File Type: jpg F5TO.jpg (232.2 KB, 578 views)
File Type: jpg F5TQ.jpg (129.4 KB, 561 views)
File Type: jpg F5TJ.jpg (118.1 KB, 355 views)
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Old 20th March 2013, 04:27 PM   #1736
labjr is offline labjr  United States
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No diodes D1-D4?

How many VA is the power transformer?
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Old 20th March 2013, 04:48 PM   #1737
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Nice. Two questions -- how did you do the lettering on the front, and where did you get the nice silver feet?
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Old 20th March 2013, 05:09 PM   #1738
oiphy is offline oiphy  Norway
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nice build 1
question from me to. why fan at the top?

" If you're going throu hell, keep going"
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Old 20th March 2013, 06:04 PM   #1739
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No diodes D1-D4?
Are they mounted away from the heatsink?
I build, therefore I am.
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Old 20th March 2013, 06:10 PM   #1740
bcmbob is offline bcmbob  United States
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Can you give some info on your power supply design? I'm new to that part of DIYing and yours certainly appears interesting.
Bob M.
"Arrange Whatever Pieces Come Your Way."
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