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Old 11th November 2010, 07:12 PM   #381
mns80 is offline mns80  Finland
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Hello all, I have been lurking around here for some time reading the whole F5 power amplifier thread, very informative and helpful, and also ended up building one, it is a very well sounding amplifier.
Many many thanks to Nelson Pass for a very very good amplifier!

Oh, almost forgot to insert the pictures everyone probably wants to see.
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Old 11th November 2010, 07:39 PM   #382
Zen Mod is offline Zen Mod  Serbia
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Location: ancient Batsch , behind Iron Curtain
nice & decent

Italian box , lsp protection .....
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Old 12th November 2010, 10:24 AM   #383
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Default more photos

Quote:
Originally Posted by silverhawk View Post
give us more photos please looking amazing!!!!!
OK, this is the simpest ZEN. For me it is a "trainnig project". J'm going to build next one. Which one???... J just think about it. New heatsink's I have already bought.
Great thanks to Mr. Nelson Pass for sharing his knowledge.
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File Type: jpg front1.jpg (65.6 KB, 2512 views)
File Type: jpg front2.jpg (69.8 KB, 2312 views)
File Type: jpg inside.jpg (128.7 KB, 1078 views)
File Type: jpg heatsink.jpg (69.4 KB, 980 views)
File Type: jpg newheatsinks.JPG (132.6 KB, 857 views)
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Old 12th November 2010, 10:53 AM   #384
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Default more photos

J forgot the most important picture. Show me, show me...
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Old 12th November 2010, 10:09 PM   #385
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Quote:
Originally Posted by simplewire View Post
OK, this is the simpest ZEN. For me it is a "trainnig project". J'm going to build next one. Which one???... J just think about it. New heatsink's I have already bought.
Great thanks to Mr. Nelson Pass for sharing his knowledge.
Take a look in f5 world...... It is a simple project with a lot suprises.....!
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Old 17th November 2010, 06:17 PM   #386
Atilla is offline Atilla  Norway
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Well, as far as preamps go, here's my take on the B1, its evolved DC-coupled, wasteful-shunt-reg version

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

Click the image to open in full size.

I hope that's worthy of being in this thread, where all the builds scare me
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Old 18th November 2010, 04:02 PM   #387
julcat is offline julcat  Mexico
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Nice B1 Atilla, where did you buy the board???
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Old 18th November 2010, 04:34 PM   #388
udailey is offline udailey  United States
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The board is available through Salas and Teabag here on the forums. Rcore looks like 30W from ebay. Nice build!
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Old 18th November 2010, 04:59 PM   #389
Salomon is offline Salomon  Germany
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Hallo Aleph-X friends,

my new Aleph-X is ready.
I needed one year to build it. The magic eye shows the temperature of the heatsinks.
I use speaker protection pcbs to control the offset of each output against ground and switch the speaker outputs to ground if their is a high offset and immediately it switches the amp completely off. There is no relais in series of the signal path.
I start with 0,6V from each output to ground. Half an hour later you can measure under 100mV
This is only possible with a special thermal offset correction.

On my homepage you find a german description of the Amp and more pictures.
Maybe someone can translate it for the forum here. I think my english is not really good.

Aleph-X - HorstWolf.de
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File Type: jpg DSC_2881.jpg (323.2 KB, 1569 views)
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Last edited by Salomon; 18th November 2010 at 05:26 PM.
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Old 18th November 2010, 05:09 PM   #390
tinitus is offline tinitus  Europe
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and it will remain a mystery how you managed to assemble it impressive
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