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Projects => Beginner Project => Topic started by: coolio49085 on October 19, 2006, 09:47:30 PM

Title: Beginner project trouble
Post by: coolio49085 on October 19, 2006, 09:47:30 PM
I built the boost pedal and i have it working correctly, but I have a problem when I plug it into a tube amp.  When I plug it into a tube amp I get loud "ungrounded" (I know what it sounds like because I have wired a bunch of guitars) sound and I have my pedal grounded correctly.  With the Pot, the input and outpur jack, and the negative of the battery snap wired together after the 47k resistor.  So my question is, What could be wrong?

Jarod
Title: Re: Beginner project trouble
Post by: aron on October 20, 2006, 12:47:43 PM
Quote
When I plug it into a tube amp I get loud "ungrounded" (I know what it sounds like because I have wired a bunch of guitars) sound and I have my pedal grounded correctly.

If it's really loud. then somehow you have wired it incorrectly and there's DC voltage coming out of the output. Most like a problem with the 10uF cap at the end. Somehow you have shorted it out (so it doesn't block DC) or it's bad (unlikely).