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Old 25th November 2012, 10:17 AM   #341
gannaji is offline gannaji  India
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Quote:
Originally Posted by Mooly View Post
I've added an index to post #1 to help find the important parts of the thread.

My MOSFET amplifier designed for music.
Thank you, Mooly, for the above. I wish all thread starters do this.

I am interested in a pair of the PCBs if the purchase goes through!
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Old 25th November 2012, 11:35 AM   #342
Mooly is offline Mooly  United Kingdom
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Quote:
Originally Posted by gannaji View Post
Thank you, Mooly, for the above. I wish all thread starters do this.

I am interested in a pair of the PCBs if the purchase goes through!
Thanks... all thread starters have that option available as a "first post edit"
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Old 25th November 2012, 02:17 PM   #343
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Cool Mooly, I pm Alex and tell him the interest in using his files. If he agrees then I can go ahead and order. I will pick up the 20 but if there are more demand it might make sense to ask everybody and if there is more demand then they can pay for theirs but to order them all together. I assume these files that Alex has are Gerber files this is what the PCB manufacturer askes for: "gerber 274X+NC drill files and BOM".
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Old 25th November 2012, 03:45 PM   #344
alex mm is offline alex mm  Europe
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....Hi ,
I will rework PCB , make an upgrade acording to new library , and experience acumulated ower yers .....
Alex.
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Old 25th November 2012, 05:20 PM   #345
Mooly is offline Mooly  United Kingdom
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Alex, that's great.

If I post a couple of sugestions on the PCB (the first one you did way back yonder ) could you see what you think.

I'm thinking it might be beneficial to have the input ground and the PSU/Zobel ground as separate points that can be run back to the main PSU to avoid any channel interaction for a stereo pair on a single supply.

What do you think ?
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Old 26th November 2012, 08:01 AM   #346
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Alex / Mooly, Great appreciate your reworking and there is no hurry from my side.

Alex, the pcb company specified they only work with Gerber274X and NC drill files which we have to email them.

Now that this is pcb board this will probably interest with many less experienced guys like myself whom want to build the amp.
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Old 26th November 2012, 03:50 PM   #347
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Originally Posted by JohnGeneva View Post
Alex / Mooly, Great appreciate your reworking and there is no hurry from my side.

Alex, the pcb company specified they only work with Gerber274X and NC drill files which we have to email them.

Now that this is pcb board this will probably interest with many less experienced guys like myself whom want to build the amp.
John - I am interested...
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Old 26th November 2012, 04:30 PM   #348
Mooly is offline Mooly  United Kingdom
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I'm trying a rework of a layout I did some time ago based on this image that incorporates the important points of correct NFB take off point and also the ability to use two ground return leads to the PSU. Two returns keeps the signal ground separate and avoids channel interaction in a stereo pair fed from a common PSU.
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File Type: jpg Notes.jpg (96.2 KB, 327 views)
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Old 26th November 2012, 05:43 PM   #349
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Hi Dudaindc, great your are interested, I put your rubycon caps to good use in several projects.

We will keep a running list, but not sure how how this will be organized except proceeds to DIYaudio and I think Mooly wanted to offer to guys whom were in the thread starters as first option, but will put you on the list. I assume you want two boards for a stereo.

Till now Gannagi, post 341 2 boards,
Dudaindc post 347 2 boards,
Mooly some boards?
Alex MM some boards?
Thread Starters?

Anyone else interested just post your interest and I guess we will go from there. It looks like Mooly is reworking his design to use a common psu, which is a good idea to keep costs down.
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Old 26th November 2012, 06:23 PM   #350
Mooly is offline Mooly  United Kingdom
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Lets see where we get to with the layout first.

I'm using Diptrace which is freeware and I will post the Diptrace files so anyone can open and modify anything as they wish. It does have Gerber files as an option but what you need and do with all the options in there I haven't a clue.

This needs someone who has the knowledge and experience of all thats needed to take a "design" and produce the required files needed. All my boards are handmade "one-offs"
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