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Old 7th September 2007, 02:44 PM   #11
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I know you just said you weren't soliciting suggestions for layout improvements yet, but...

How about make the boards so that the output stage could be separated from the front end - like that shown in the superamp redesign thread. IIRC, it wouldn't take too much rework to make the needed connections fit a SIL connector.

If you were to make a 5 output pair board and provide a separation point between the first three pairs and the last two, we could just snap off the unused portion if we want to make a smaller version. Even better in my book would be to make it a 6 pair board, so we could go 3 and 3 if desired.
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Old 7th September 2007, 06:49 PM   #12
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Bob, I am not to adept at drawing pcb schematics. The files for Jens board are readily available to us and I was planning on using his design. Separating the input from the output has many advantages i just do not have the program to draw it. The size of the current board Jens has drawn i believe is outside the current limits of Eagle lite.
At present i am researching the availablity of a low priced cnc router to use for small quantities of pcb's like this project. I would very much like to have the capability to mill out board projects for some of the ideas on this forum. Regards Tad Ellis
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Old 7th September 2007, 07:16 PM   #13
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Drat - I was hoping that we had another expert in line. Yes, the board is too big for the free version of Eagle, Jens has the full version.

Wonder how far back we have to go to find a common ancestor?
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Old 7th September 2007, 08:11 PM   #14
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I might have time to pimp it up if Jens is happy to send me his files, but I can't do any prototyping like I did with the Krell.
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Old 7th September 2007, 10:08 PM   #15
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The PimpMouse ?

(not that i object to an output stage board with a fur coat logo)
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Old 7th September 2007, 10:13 PM   #16
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Be cool brother. The Feds don't know about my pink Cadillac and collection of wide brimmed hats...
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Old 8th September 2007, 02:02 AM   #17
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Al, do you have time to do a project like that with the AAK boards coming for you to assemble. Your layout expertise would be graciously received on my part anyway. Thanks Tad
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Old 8th September 2007, 05:12 AM   #18
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Default Leach amp board

TAD

Pending final costs, please cont me in for at least 10 boards (10 transistor version prefered).

Although some of the requested changes for the board design seem interesting, I would rather have boards that are exactly like the original board by Jens Rasmussen.

Thanks for your effort.

LS
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Old 9th September 2007, 06:30 AM   #19
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What kind of output is the 10 transistor version capable of? And these are full class a arent they? Also anyone know roughly what the parts cost to fill these boards are?
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Old 9th September 2007, 07:53 AM   #20
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Although some of the requested changes for the board design seem interesting, I would rather have boards that are exactly like the original board by Jens Rasmussen.
I agree, count me in for at least 4 boards.
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