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Alpeh 5 pcb
Alpeh 5 pcb
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Old 28th May 2004, 04:20 AM   #1
MEGA_amp is offline MEGA_amp
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Default Alpeh 5 pcb

I am helping my friend build an Aleph 5. I made some modifications to Brian Bell's Aleph PCB. I understand very little about making PCBs, but I figure that bigger traces must be better. However I read that to avoid crosstalk, the traces if they are close together should be curved. But since there is only one signal, would crosstalk be an issue? Here is the modded board (copper side).
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Old 28th May 2004, 04:21 AM   #2
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Brian Bell's Aleph clone
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Old 28th May 2004, 05:55 AM   #3
Brian Donaldson is offline Brian Donaldson  United States
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Fatter traces make your echant last longer.
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Old 29th May 2004, 01:30 AM   #4
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Quote:
Fatter traces make your echant last longer.
Thats it? Will what I'm doing with my PCB improve performance?


regards

JH
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Old 29th May 2004, 02:54 AM   #5
Brian Donaldson is offline Brian Donaldson  United States
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One thing I see as a potential problem is the ground making a loop around the board. Brian's layout isolates the input ground from the power. connecting both to star ground independantly will reduce chance of noise injection from resistance between speaker ground to star ground.
Beefing up traces that carry high currents is a good thing. I laid 12 ga solid stripped wire over mine. I believe in making small signal traces that carry almost no current as small as possible, But I doubt that you can hear the difference. I also believe in making things as compact as possible. Shorter traces have less lenght to pick up "stuff". (this also appeals to my sence of thrift)
Other than ground issue, looks good. His layout works great, and you've done very little to really change it.
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Old 29th May 2004, 05:21 AM   #6
azira is offline azira  United States
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Quote:
Originally posted by Brian Donaldson
One thing I see as a potential problem is the ground making a loop around the board.
When you can't have a dedicated ground plane, a ground loop around the outside is a good rule of thumb for digital logic circuits. Then again, this is an analog circuit...
--
Danny
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Old 29th May 2004, 04:57 PM   #7
nickgreek is offline nickgreek  Germany
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Hello guys
Here is my Aleph5 pcb
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Old 29th May 2004, 07:40 PM   #8
highbias is offline highbias  United States
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One thing that is bad are the sharp square corners. Rounded corners are also more structurally sound as well as less likely to pick up adhacent solder should that happen. But yes, I like the more copper aspect of it. Nicks board is an excellent design!!

Nick,
Could you please post your file on that so I could also use it??? Thanks!

Mark
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Old 30th May 2004, 06:43 AM   #9
nickgreek is offline nickgreek  Germany
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Hi mark


I send you E-MAIL

niko

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Old 30th May 2004, 08:35 PM   #10
Jaac is offline Jaac  Netherlands
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hey there

i've also made me a aleph 5 print in ultiboard. i have made so that the power fets and power resistors are wired p2p.

gr Jaac
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