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Need to do some filtering at the DC jack and Im stuck

Started by selfdestroyer, September 08, 2013, 05:30:42 AM

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selfdestroyer

I built a Monolith tonight and its a CRAZY beast and its been fun to play but I get some loud squealing from it with different know configs.. I was looking on Tagboards since I used Marks layout and another builder had the same issue. He said it would work fine with a 9V bat but on his 1Spot it would squeal. He said this "Used 220uf + a 220R soldered to the dc jack are wonderful, quiet pedal now." and I am not 100% sure how to do this. Does it bridge the positive and negative? Is it in line on one of them? I have seen pedals before with caps on the DC jack but of course now that I need to see one I cant find a picture or info anywhere. Can someone push me in the right direction?

Layout I used: http://tagboardeffects.blogspot.com/2013/06/mountainking-electronics-megalith.html

Thanks
Cody 

edit:
I missed this "I replaced the 47uf cap from +9v to ground with a 220uf one. Te 220r resistor was soldered to the +9v lug of the dc jack, ans from there to the wire that connects to the +9v row in the pcb."

I will try this.


TNblueshawk

John

kothoma


TNblueshawk

When I click on his link to the OLC filtering there is a no print lock on it. I saved as a PDF and I still can't print it. I'm at work but I don't think it is a work filtering thing.
John

kothoma

#5
Ah yes, you're right, printing was restricted by the creator.

Thanks to http://www.pdfunlock.com/ here is:

kothoma


TNblueshawk

John