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DIY Stompboxes => Building your own stompbox => Topic started by: ianmgull on December 10, 2009, 12:31:22 AM

Title: Electro orientation in dynacomp perf layout
Post by: ianmgull on December 10, 2009, 12:31:22 AM
I started perfing a dynacomp from the layout below and got confused when I hit the electros. Are they oriented correctly? I guess a better question now that I'm half way through is.. Is the layout verified? Anybody used it?

(http://www.aronnelson.com/gallery/main.php?g2_view=core.DownloadItem&g2_itemId=40210&g2_serialNumber=1)

http://www.aronnelson.com/gallery/main.php/v/jdub/Dynacomp+perf.PNG.html?g2_imageViewsIndex=1
Title: Re: Electro orientation in dynacomp perf layout
Post by: PRR on December 10, 2009, 02:05:46 AM
> Are they oriented correctly?

Yes.

Still in doubt? Build it without them. Most things will bias-up to DC levels without a few of their caps. Now put your voltmeter where the caps will be, check polarity and also voltage (though in 9V work, voltage is rarely an issue).
Title: Re: Electro orientation in dynacomp perf layout
Post by: ianmgull on December 10, 2009, 02:18:46 AM
Take C2 for example (the electro in the upper left corner); it's negitive stripe is pointing up (towards +9v) which makes the positive end connect to ground. Am I missing something here?
Title: Re: Electro orientation in dynacomp perf layout
Post by: ianmgull on December 10, 2009, 10:41:48 AM
Anybody? I'm second guessing everything I know now!!!
Title: Re: Electro orientation in dynacomp perf layout
Post by: jdub on December 10, 2009, 10:52:07 AM
In that layout- I shoulda put a note on it- the stripes on the caps denote the POSITIVE side.  I did that because I was more concerned with where the positive side was oriented, and there was no indication of positive on the cap image and I didn't feel like adding one with text.  In fact, I've kinda gotten in the habit of using the stripe on the caps in DIYLC to denote positive. Confusing, I know- my apologies.  I'll correct the layouts when I get a chance.

Also, the layout is verified- my Dynacomp has been on my board for some time now and works great.
Title: Re: Electro orientation in dynacomp perf layout
Post by: ianmgull on December 10, 2009, 10:54:43 AM
Thanks so much John, glad to hear that. Back to building...   :)
Title: Re: Electro orientation in dynacomp perf layout
Post by: jdub on December 10, 2009, 10:59:59 AM
No prob, man.  Lemme know if you have any troubles  :)