Guest crashie Report post Posted September 3, 2008 hi guys, i got a small problem with this circuit. Do i have to put output resistor ? thanks Share this post Link to post Share on other sites
heady 0 Report post Posted September 4, 2008 I guess if you have a problem, there's no harm to try it. If you are going to this trouble for the CMOY ground, why not built a Pimeta instead? Anyway, here's a pic of the PINT virtual ground, maybe you can adapt it. Share this post Link to post Share on other sites
Guest crashie Report post Posted September 5, 2008 thanks heady. how to calculate the custom resistor value? any link. Share this post Link to post Share on other sites
heady 0 Report post Posted September 6, 2008 (edited) I must point out that your schematic and the PINT virtual ground is not the same. If you are using a dual opamp for the virtual ground, then you are using it like the A47 left and right channels which has a slightly different schematic again. I think it will be better to either adapt the PINT virtual ground or just use a single opamp instead of two opamps/dual opamp chip. Anyhow, I am just a script kiddy lah, dunno enough basic electronics. But here's a link to a great place to read about virtual ground. Edited September 6, 2008 by heady Share this post Link to post Share on other sites
