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Old 22nd December 2008, 06:17 PM   #1
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Join Date: Oct 2003
Location: San Jose
Default F1 Group Buy

Nelson has approved a GB for his balanced F1 transconductance amplifier.

Please review the Design Thread to help verify the design and provide comments for improvements before the GB closes.

The GB will close on December 31st 2008, when the boards will be ordered.

To sign up, please add your name to the F1 GB Wiki . I'll only pull names from the Wiki and not the forum pages. The wiki will contain all ordering information. For now, register on the wiki and I'll provide payment details later on how to pay via PayPal only.

-David
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Old 22nd December 2008, 11:39 PM   #2
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Pretty good, we are up to 22 boards in half a day.

Please feel free to ask questions about the GB here, and provide comments about the design on the pass forum.

-David
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Old 23rd December 2008, 12:01 AM   #3
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Hi David ,

sorry i have problems with the wiki thingie ,
i am in for 1 Stereo Set (2 boards) .
Thanx in advance .

Greetings from Germany
Jürgen
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Old 23rd December 2008, 12:12 AM   #4
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Hi Jürgen,

I added you to the Wiki for 2 boards.

-David
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Old 23rd December 2008, 03:20 AM   #5
ejfud is offline ejfud  United States
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I'm in for a pair.
__________________
Gary
One good driver is all I need.
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Old 23rd December 2008, 05:52 AM   #6
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Quote:
Originally posted by ejfud
I'm in for a pair.
OK, sign up on the Wiki to get in.

-David
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Old 23rd December 2008, 05:57 AM   #7
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wich PS will use this boards? will be great if can build some PS too.
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Old 23rd December 2008, 07:08 AM   #8
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The PSU is the same as the F3 & F5. Peter Daniel has a GB underway and he's offering PSU boards pretty cheap. I did not see the need to duplicate the effort for PSU boards.

-David
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Old 23rd December 2008, 12:15 PM   #9
jims is offline jims  United States
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Great looking board, I am in for 4. One suggestion though: Can you space three of the transistors to match the spacing of one edge of Peter Daniels F4 board? I hate drilling, tapping and buying heat sinks, this way one could just drill and tap a couple of new holes, and swap the boards on the same heat sink/chassis that they use with their F4, which is also compatible with the spacing of Peter's new F5 board. Just an idea.


Thanks

JimS
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Old 23rd December 2008, 12:22 PM   #10
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OK, so one pair for me!
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