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Old 20th September 2013, 11:34 PM   #5301
PKI is offline PKI  United States
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Quote:
Originally Posted by Nelson Pass View Post
I'll take one to BAF.

Nelson, is it going to be a commercial or DIY amp?
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Old 21st September 2013, 10:52 AM   #5302
generg is offline generg  Germany
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May be a little off topic.....

but it shows the material Nelson is working with..... in his "simple" circuits...

left his three FQA19N20c and right my stock of FQA19N20c....

do you see the difference..... ?
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Old 21st September 2013, 11:36 AM   #5303
WalterW is offline WalterW  Netherlands
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Wow, that is tightly matched...
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Old 21st September 2013, 05:14 PM   #5304
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This is maybe a typical semicon+pot+meter trade off ....

If not lots of semicons, make sure you have a pot and a meter
If you have lots of semicons, you won't need the pot. Just the meter.

Doesn't make one approach better than the other

Last edited by kasey197; 21st September 2013 at 05:17 PM.
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Old 25th September 2013, 08:00 AM   #5305
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Here is my finished F6.

First of all I have to thank Gerd (generg) for measuring and adjusting the amp!
Without his knowledge and equipment the amp wouldn´t sound on this high level.
Unfortunately the psu caps were delivered in a bad condition.
That´s the reason for the grooves on top of them.

Regards Andreas.
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File Type: jpg Aufbau Innen 04.jpg (395.1 KB, 348 views)
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Old 25th September 2013, 08:57 AM   #5306
biju55 is offline biju55  India
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Very nice! How does it sound?

Last edited by biju55; 25th September 2013 at 09:26 AM.
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Old 25th September 2013, 10:45 AM   #5307
zany is offline zany  Australia
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great work andreas! You are very fortunate to have access to one of the seasoned F6 harmonic tuning specialists...
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Old 25th September 2013, 02:49 PM   #5308
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congratulations - fantastic job - sound?
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Old 25th September 2013, 03:18 PM   #5309
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VERY nice indeed!!

What is the black button on the front? Pot or just a switch?
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Old 25th September 2013, 03:19 PM   #5310
OllBoll is offline OllBoll  Sweden
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Beautiful build, a work of art =)
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