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Old 9th December 2010, 06:11 PM   #1
NYCOne is offline NYCOne  United States
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Default Seeking F5 Single-sided PCB layout

I etched my first PCB last night - what a blast! It was a Borbely preamp to compare to my UGS under construction.

Moving to the F5 - I'm playing around with different configurations (XF5, cascoding, different outputs) and having a PCB pattern to help makes sense. I failed at a point to point F5 attempt and now see the benefit of PCBs. I dug through the threads and found a couple of PCB layouts. I'm hoping to see what a few others have done and piggyback on their work.

If you have an interesting single sided F5 layout, would you consider posting?

Thanks
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Old 9th December 2010, 07:57 PM   #2
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Just my 2 cent triple F5
This is just the Mule for a planed balanced F5 from the Balanced tread

Not tested so far

Al
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Old 9th December 2010, 08:00 PM   #3
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PS. it may not be interesting but I hope it helps.
PM if you need DXF or PCB files.

What do you use to get from paper to copper?

Al
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Old 9th December 2010, 08:48 PM   #4
NYCOne is offline NYCOne  United States
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I am very value oriented. This trait delays projects, but it ensures I don't waste money.

As such, I used the magazine method. I got a VERY usable board with my first try. Now that I see how it works, I have very high confidence I can make good boards easily. My next challenge is double sided boards.

I'll try those over the weekend.


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Originally Posted by Bksabath View Post
PS. it may not be interesting but I hope it helps.
PM if you need DXF or PCB files.

What do you use to get from paper to copper?

Al
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Old 9th December 2010, 09:13 PM   #5
juma is offline juma  Serbia
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F5 power amplifier
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Old 9th December 2010, 09:28 PM   #6
NYCOne is offline NYCOne  United States
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Juma,

It looks great. Would you happen to have a version with just the copper traces?
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Old 9th December 2010, 09:33 PM   #7
juma is offline juma  Serbia
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Not right now - it's on the other PC. I'll look up tomorrow and let you know.
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Old 10th December 2010, 12:49 AM   #8
frags is offline frags  Canada
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http://www.diyaudio.com/forums/attac...1&d=1291945694
This is my F5 board.
It has two places for FET source resistors.
Board size is 110x70mm.
FET mounting hole distance with this board will be 140-145mm.
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File Type: jpg pcb.jpg (83.5 KB, 372 views)

Last edited by frags; 10th December 2010 at 12:52 AM.
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Old 10th December 2010, 03:25 AM   #9
NYCOne is offline NYCOne  United States
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Default XF5

I've been playing around trying to make an XF5 with IRF outputs. This is quite a feat for me as I have no training in either electronics or audio. As My first post in the current XF5 thread I proposed a mirrored Pass F5. I did not get any real input as to the viability of the idea.

Now, Juma posted a nice F5 PCB layout, and I was able to paint in the parts to make the circuit I initially proposed. I don't really understand how to optimize the circuit for 8 ohm speakers, if anyone has thoughts, I'd appreciate them. Below is the PCB layout without the components. It was taken from Juma's design, so you can fill in the components with pen on paper if you're inclined.

Please let me know if you have any improvements.
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File Type: gif f5 PCB layout 5.gif (22.9 KB, 330 views)
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File Type: pdf Potential Balanced F5.pdf (192.9 KB, 57 views)
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Old 10th December 2010, 10:02 AM   #10
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You have Protel PCB files for PCB I made somwhere in the main F5 thread.
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