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					There is a "green" or "enviromentalist inspired" variable voltage  universal wall wart standard  with a standardized connector etc on the way, it was mentioned in EDN magazine but I skimmed the first three paragraphs and then ignored it as I will never be a overseas electronics designer.  
 
 I know the USB standard says 500 mA, but I've seen quite a few implementations that were loosers, assume you have 200 or so.
 
 Steve
 
 
 
 
 
 
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			 Can someone build me an Soundcard OP-AMP Can someone build me an Soundcard OP-AMP
			
				
					Hi,  im rather new too the scene, and want to start work on my projector project.
 
 I have decide to go with the sound card DAC as im on a tight budget.
 
 I can no longer solder due to a  problem with my eyes. so i am looking for someone who can build me an Sound Card OP-Amp.  I don't know what the best way to go about this is?  I guess i can buy the USB Sound Card from ebay then mail it to who ever can do the work for me.
 
 This is the Sound Card as recommended by Drlava:
 http://cgi.ebay.co.uk/6-Channel-PCI-...3286.m14.l1318
 
 
 I am based in the UK.   Can someone give me a price of how much it will cost to build the op-amp and connect it to the USB Sound Card.
 
 Please E-Mail me:   opamp@sean1983.com
 
 
 Thanks Guys
 
 Sean
 
 
 
 
 
 
 
	
	
 
	
	
	
	
	
	
	
	
	
	
		
		
			
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