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Old 13th August 2002, 08:51 PM   #1
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Default ESP project 3a PCB foil patterns

Hi guys,

I'm in the midst of building a 5.1 system for watching movies, and am looking at amplification for the centre/surround speakers.
After lots of prototyping (thanks to my dad there ) I've decided I like the sound of the ESP 60/100w amplifier, loads of clean power, perfect for action movies
But I've decided to go all professional and put the amps on (drumroll) PCB's. Problem is that I want to etch the boards myself, and not buy them. I can't seem to find anywhere I can get the foil pattern.

Can anyone help out?
Thanks
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Old 13th August 2002, 08:57 PM   #2
tiroth is offline tiroth  United States
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You won't find Rod's layouts anywhere--he has requested that they not be made public.

Why do you want to make your own PCBs? Rods are actually quite flexible, and are very inexpensive.
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Old 13th August 2002, 09:15 PM   #3
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Default P3A

Hi FullThrottleRic

I suggest you buy your PCB' form Rod since they are cheap.

\Jens
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Old 13th August 2002, 09:40 PM   #4
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Dunno really, just fancied doing it myself.
How about the Leach amp, I've heard quite good things about it, but to make a PCB I need the foil pattern as an image (I like to use a product called press'n'peel, which needs the image to be flipped vertically and horizontally, which I cant do when it's a PDF file)?
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Old 13th August 2002, 09:46 PM   #5
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Default PCB Layou and Design

Hi

I'm making a Leach amp at the moment, did the layout myself

http://www.diyaudio.com/forums/showt...0694#post50694

or for the P3A

50-100watt amplifier schematics wanted

\Jens
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Old 13th August 2002, 10:00 PM   #6
sam9 is offline sam9  United States
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Default Making your own boards

If you really want to make your own boards, G.Randy Slone's are available in his books (you may need to enlarge some to 1:1 scale) or if I'm not mistaken you can buy construction manuals for some that let you use a copy machine to make transparancy for photo etching or to make a iron-on-peel sheet. He'll sell you the boards too if you wish.

Be warned, his parts counts are quite bit higher than Rod Elliot's. Many of his designs seem to be variations on Doug Self's "Blamless Amp". If you like low THD, they don't come much lower in AB class.

See :

http://www.sealelectronics.com
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