madbeanpedals::forum

Projects => General Questions => Topic started by: sammy-arfie on January 14, 2021, 06:06:13 PM

Title: Resistor keeps burning out on my Dead End Lola phase...
Post by: sammy-arfie on January 14, 2021, 06:06:13 PM
Hey y'all ! So I'm nearing completion on my Bi-Phase Clone and I have a resistor that keeps burning out on me. It's resistor R11 on the main board, 12R 1/4 Watt and it's burned out twice now on me...It's getting the correct voltage it should off of the jumper and the other 12R resistor on the other side (R12) is working just fine. Any one run into this one ? On the upside the effect is working great and sounds absolutely fab (when there isn't smoke coming out of it !). Powering it with a 16VAC power adaptor on a surge protector. Any help is appreciated!

Title: Re: Resistor keeps burning out on my Dead End Lola phase...
Post by: sammy-arfie on January 14, 2021, 06:08:28 PM
Here's an image
Title: Re: Resistor keeps burning out on my Dead End Lola phase...
Post by: Govmnt_Lacky on January 14, 2021, 06:16:25 PM
Check to make sure neither side of that 12R is shorted to GND.
Title: Re: Resistor keeps burning out on my Dead End Lola phase...
Post by: madbean on January 14, 2021, 06:26:51 PM
Maybe just pulling too much current. Try a 1/2W rather than 1/4W. You could probably sub 10R in place of 12R as well.
Title: Re: Resistor keeps burning out on my Dead End Lola phase...
Post by: sammy-arfie on January 16, 2021, 04:38:27 PM
Thanks for the help y'all! I did some further probing and in the end all of the caps around the resistor were bad. Replaced them all and bumped up the resistor to 1W for good measure and it's back in action !