F5X -- the EUVL Approach - Page 26 - diyAudio
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Old 23rd June 2011, 02:33 PM   #251
ashaw is offline ashaw  Australia
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I can say with some authority that that is a seperate board.
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Old 23rd June 2011, 03:45 PM   #252
EUVL is offline EUVL  Europe
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Yes.
Alexis is close to finishing it.


Patrick
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Old 25th June 2011, 11:55 PM   #253
lhquam is offline lhquam  United States
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Location: Olalla, Oregon: Land of the 100 Valleys
Quote:
Originally Posted by EUVL View Post
We now have 10 in our hands.

Patrick

Is there a schematic available?
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Old 26th June 2011, 05:08 AM   #254
EUVL is offline EUVL  Europe
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There was an old schematics in the original F5X thread right at the beginning, around 2008.

All updated documentation related to the standard version based on this PCB will be published once the boards have been tested functional, by the test team.
These include schematics, bill of material, component placement, etc.

We are currently waiting for regulator PCBs (expected 1st week of July, and then they will be on their way to the test team members.
So I expect 1st results end of July.


Patrick
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Old 26th June 2011, 11:24 AM   #255
EUVL is offline EUVL  Europe
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Here is the schematics of the first ever F5X I built :

F5 power amplifier


Patrick
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Old 27th June 2011, 08:26 AM   #256
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Patrick

what pre suggest to use with F5X
what are you using
Is UGS v3 good for F5X
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Old 27th June 2011, 05:31 PM   #257
EUVL is offline EUVL  Europe
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I am using an all JFET pre, similar to Borbely topology but with no global loop feedback.


Patrick
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Old 27th June 2011, 07:05 PM   #258
Studley is offline Studley  United Kingdom
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Patrick
just as an aside and to keep us bobbing along, apart from having more power, how does the F5X compare to the F5 sonically?
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Old 27th June 2011, 07:31 PM   #259
EUVL is offline EUVL  Europe
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I said this once already at the original F5 thread.

I have only been building balanced Class A amplifiers since 2003 (apart from a Gainclone for my sister), and I have not built the single ended F5.

So I cannot possibly answer that question.
Nelson is the person to ask.


Patrick
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Old 30th June 2011, 08:49 AM   #260
jackies is offline jackies  United States
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This shaping up to be a top quality project!
Great work EUVL!
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