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cviller cviller is offline

diyAudio Member

About Me

  • About cviller
    Biography
    One of those who actually build stuff.
    Location
    Copenhagen
    Interests
    Diy hifi - obviously...
    Country
    Denmark
  • Signature
    I have started a blogged guide to my F5 boards read it here: F5 pcb v2 blog

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  • Last Activity: Today 06:57 PM
  • Join Date: 9th December 2005

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Latest Blog Entry

Posted 11th February 2010 at 06:36 AM by cviller Comments 1
Posted in Uncategorized
This is a guide to building a F4 using my boards, but you may be able to find some useful information here even if you use other boards.

The boards are based on the schematics from Nelson Pass's FirstWatt F4. You can get the service/user manual here: First Watt: Products: F4

You might want to check out the GB thread here: http://www.diyaudio.com/forums/group...gb-f4-pcb.html

PCB
Here is a picture of the pcb.
Attachment 109
There are still more available and you can order them from my site GB order page for cviller

Errata
There is a trace error around R22. I have cut the traces on most of the boards I have sent - and the rest of the batch will be cut before I send them out.

These are the cuts which needs to be made:
Attachment 110

And the green lines indicate where a connection must be made:
Attachment 111
This can be done...

Posted 3rd February 2010 at 02:17 AM by cviller Comments 74
Posted in Uncategorized
As promised, I would make a guide to the boards and in particular to the additions I have made to the F5. I decided to do this in the blog, because then you can give me comments which I can use for improving the doc. However I'm not done at all, but I thought it would be nice to give you access to the BOM I have made.

IMPORTANT: Before you start stuffing your boards, you must read the manual/article written by Nelson Pass – available for download on the First Watt website (First Watt: Products: F5).

PCB
Here is a picture of the pcb.
Attachment 99
There are no more boards available, but you can order F5 boards on the diyAudio store.


Schematics
Attachment 98
Optionality
With the addition of optional extra output mosfets and cascoding, there are many possible ways to build the amp. Here I'll try to explain some of them.

Stock F5 example
Greens are populated and...
Recent Comments
Hi Oliver,
...
Posted 3rd January 2012 at 08:29 AM by cviller cviller is offline
Quote:
Originally Posted by cviller
Hi Oliver,
...
Posted 3rd January 2012 at 07:46 AM by dvb-projekt dvb-projekt is offline
Hi Oliver,
...
Posted 30th December 2011 at 04:57 PM by cviller cviller is offline
Hi Christian,
...
Posted 30th December 2011 at 04:31 PM by dvb-projekt dvb-projekt is offline
potepuh, you then need...
Posted 18th December 2011 at 02:49 PM by cviller cviller is offline
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