Aleph 2's Underway!

[Peter Daniel]

I believe both ways are correct. Maybe search would find more info on that, because something like that must have been discussed.
Anyway, Brians layout was done by joint effort of forum members and I would go with it.

[BrianGT]

I am fairly confident that the layout is correct. I have looked over it countless times, as have many other forum members, and it has been shown to be functionally correct by several people, who have successfully built Alephs with the boards.

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Brian

[BrianGT]

Till,

You could probably figure out his layout and duplicate it with some effort, if you really wanted to. Here is a picture that was posted of the bottom of his boards. I see no reason to.

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Brian

[Brian Segura]

I guess it comes down to the classic fork in the road. When two paths are correct - the true audiofile always wishes to have taken the Most Correct Path. I wonder which path Mr. Pass took.

Thanks again for your reply
-Brian

[Brian Segura]

BrianGT:

Those are some nice looking heatsinks... are more available from your source ?

-Brian S

[BrianGT]

Dale is organizing a re-order of the boards, with a couple of minor changes. There are a few thicker traces, and better mounting of Q4 and Q5. He has posted a thread at:

Aleph 2 Boards Ordered

He should have some boards left that have not been reserved. I didn't have the funds to organize another order, so I passed it on to him. They will work exactly the same, but will be a bit easier to soldier the Q4 and Q5 devices.

I sent you an e-mail also reguarding your earlier question.

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Brian

[till]

thank you brian for posting the pic.

I didn´t wrote that he didn´t published his layout because its a special desire of me to copy his one. It´s just i searched the forum and the net for aleph layouts, printed everyone i could obtain, and are in process of compare. I´ll not make an aleph in the next days, i yesterday made PCB for ZEN V4 and will build this first. Last missing part for this are the heatsinks, i ordered 2 fischerelektronic SK438-150 AS and look forward to recive them in about 3 weeks. I will start collecting parts for an aleph 2 and descide which layout to use some weeks later. The professional PCBs are 10-20 times the price of a homemade even if the professional ones look much better -too expensive for me. For people like me who want´s to make PCBs at home it would be very great advantage to post pics or pdf in black and white and 1:1 of the layout instead of gerbers.

Till

[fcel]

Brian Segura,

Regarding your question concerning C9 and C10, check out the link below with the post dated 5/12/02 at 12:14pm. It should clear up all your concerns. http://diyaudio.com/forums/showthrea...h&pagenumber=2

[Brian Segura]

Thanks for the link.

-Brian S

[Mark A. Gulbrandsen]

I received my upsized heatsinks fomr M&M Metals today. Attached a photo comparison of the new next to the surplus units I was going to use. These were 22.00 each plus shipping. I'm kind of glad they came natural finish so I can pick the anodize color I want. Black is best for good heat disipation, but that gold anodize looks cool!

Also ahve the PCB's assembled using a pair of Brian GT's boards. All semi's are matched up. Now to start on the chassis, which I will do tonight.
Mark