Username 0 Report post Posted April 12, 2005 (edited) I posted this on head-fi. Can someone help me please. Thanks. http://www6.head-fi.org/forums/showthread.php?t=115349 Edited April 12, 2005 by Username Share this post Link to post Share on other sites
heady 0 Report post Posted April 12, 2005 Hi, did you read the replies given in headfi? What is it that you need help with? Share this post Link to post Share on other sites
Username 0 Report post Posted April 13, 2005 I did read the replies, I just need someone to help me confirm if my layout is the same as Chu Moy's original design. Share this post Link to post Share on other sites
heady 0 Report post Posted April 13, 2005 Ah... Yes, it is the same except almost everyone leaves out R1. Digi01 has a nice layout for CMOY which you can also look at. Search for it on Google. Share this post Link to post Share on other sites
Username 0 Report post Posted April 13, 2005 Thanks alot Heady. I've seen digi's drawing, thought it was easy enough to follow. My first attempt at a CMOY, I blew it up Share this post Link to post Share on other sites
heady 0 Report post Posted April 13, 2005 No big deal, I burned many TLEs by forgetting whether + is red or is - red? This is the cost of experience, so persevere. Share this post Link to post Share on other sites
Username 0 Report post Posted April 13, 2005 One more question: Polyester caps have no polarity ? Share this post Link to post Share on other sites
heady 0 Report post Posted April 13, 2005 One more question: Polyester caps have no polarity ? Polyester and polypropylene caps do not have polarity. Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted April 13, 2005 Ceramic caps also no polarity. Thanks for your post Heady. Share this post Link to post Share on other sites
Username 0 Report post Posted April 13, 2005 (edited) Bah.... I don't know what is the problem... my LED goes off when I inserted my OPAMP and teh opamp heats up. Edited April 13, 2005 by Username Share this post Link to post Share on other sites
Username 0 Report post Posted April 13, 2005 (edited) Question: Does the +ve side of the power supply go to the -ve of the OPAMP? EDIT: Oh yea... Guess where I got wrong.... I connected the +ve to the -ve side of the system. JUST LIKE THE LAST TIME... Edited April 13, 2005 by Username Share this post Link to post Share on other sites
jasonhanjk 0 Report post Posted April 13, 2005 You can buy JRC4556 real cheap for doing such destructive test... Share this post Link to post Share on other sites
heady 0 Report post Posted April 14, 2005 You can buy JRC4556 real cheap for doing such destructive test... Get from where Jason? I also prone to mistakes like this, especially at 1am in the morning. Share this post Link to post Share on other sites
Username 0 Report post Posted April 14, 2005 (edited) It's ALIVE!..... Woot woot Thanks for all the help Jason and Heady. Can't wait for my OPA2227 to come. Also, no hiss, clean signal... NO TROUBLESHOOTING Jason: Are those which you mentioned this cheap? http://sg.farnell.com/jsp/endecaSearch/par...?SKU=401146&N=0 I can use a few of them in my OPAMP destruction project. Edited April 14, 2005 by Username Share this post Link to post Share on other sites
heady 0 Report post Posted April 14, 2005 (edited) Hey congrats, username! Looking forward to your pics of the build. Thanks for the link to the JRC4556 in Farnell too. Edited April 14, 2005 by heady Share this post Link to post Share on other sites
