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ULTRA clean 9VDC Power Supply Project ULTRA clean 9VDC Power Supply Project
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Old 27th October 2008, 06:58 PM   #46
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this one's a smoking thread... haha
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Old 28th October 2008, 02:05 AM   #47
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Originally Posted by Peter_wadley View Post
I just found two options on my camera.. 1) close up and 2) super close up
I do love my camera's super macro mode... I can focus in at under an inch away and take pictures of jewelry
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Old 19th November 2008, 01:54 PM   #48
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I never heard of "isopropanol". Did you mean to say, "isopropyl alcohol"?
Would a switching power supply ( UA78S40PC) be better for stability?
My choice for etchant is ammonium persulfate, cleaner than ferric chloride and it doesn't stain plastic or your skin.
A slikscreener is a better choice for a layout draft on the component side of the board.
Last edited by shokjok; 19th November 2008 at 02:08 PM. Reason: additional information
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Old 17th December 2008, 09:49 PM   #49
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Originally Posted by Lucas View Post
Hey-
I was just curious if there is any pre-laid out PCB board that you might be able to buy or for a project like this or if it is necessary to do all the work personally. I just am trying to see if i can avoid doing the etching myself.
You could use perfboard (non-clad circuit board.)
Solder wires to replace the copper traces.
No etching, no worries

Phil
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Old 10th May 2009, 04:05 AM   #50
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how if i want to make the isolated power supply with output voltage +- 12v?
tanx
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Old 12th May 2009, 04:40 AM   #51
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This thread contains everything you need. Just go to the beginning and make some small changes to the calculations.
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Old 13th May 2009, 07:58 AM   #52
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can you help to find it
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