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Dumb Cap Job Question

5/17/2005 4:51 PM
Lonzo Dumb Cap Job Question
Semi-Noob question...I searched the forum for an answer but could not find another thread about this. Sorry if I'm wasting time but I guess I'm really stupid and can't figure this one out....  
I'm trying to replace the caps (coupling & tone)in a couple of my amps (Laney VC30 & Bedrock BC50) with Orange Drops and the leads are too big to fit through the PC board. I'm sure I bought caps with the same voltage value and same uf value, but the leads are larger in diameter than their Chinese & Korean counterparts.  
I'm hesitant about making the holes larger in fear of opening a trace, but if that's the answer, I'm dremel ready.  
Any help is always appreciated.  
5/17/2005 7:09 PM
You can start by fluxing the holes, heat 'em and suck 'em out. Or try to get the leads to fit as you heat the holes with your iron. Sometimes the leads will fit but the rough hole has crap in it. If the leads almost fit you can try to scrape down the leads with a pair of needle nose pliers. Not the flat jaw type. You need the grooves in the jaw to do the scraping. Grab the lead in between two of the grooves and twist slightly as you drag it from the jaws. If the holes are indeed too small then there is no choice but to open the holes up a little. Use a Dremel and a new drill bit if you can. The higher speed and sharp bit will make a cleaner hole and reduce the chance of grab ond tear on the copper foil. If it's not too much trouble you should start the hole on the clad side of the board. If you can't and you push a trace off the board you will have to remove the board to repair it anyway. Or you'll just have to jerry rig a jumper lead as a repair (probably what I'd do ;)).  
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5/19/2005 5:37 PM
Thanks for the advice. I pulled the PC board and will begin swapping caps tonight.  
Thanks again for your knowledge.  
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