damian
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Post by damian on May 11, 2005 10:14:03 GMT -5
i recently built a strat. i did not do the full qtb mod i only shielded the cavities with copper that i connected to ground. my question is when i play without my boss compressor i get no noise in the 135 positions but when i turn the compressor on i do get noise, only not in the 2 and 3 position. what im wondering is why when the pedal is on am i getting noise and will the qtb mod help this problem if like i said my guitar is quiet without the pedal. or is it the pedal that is creating the noise. if it is the pedal why is it still quiet in the 2 and 3 positions. i know they are reverse wound but i would figure they would also get noise if it was the pedal. thanks damian
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Post by erikh on May 12, 2005 9:06:32 GMT -5
Where in your signal chain is the compressor? Before or after any distortion/overdrive? Compressors can increase noise. They take the incoming signal and compress or "normalize" it but not just your guitar signal but anything else going through it so if there is noise going through it, the noise gets compressed too.
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Post by StratLover on May 12, 2005 11:43:19 GMT -5
"ErickH"------is absolutely right about the signal line, and the FULL "QTB" mod is exactly what it is.
You are shield grounding the whole instrument as much as you can to prevent 60 cycle hum.
If you did not do the FULL "QTB" mod there is really no way to determine without a doubt it is your compressor pedal or indeed your guitar.
I am sure the series in which your compressor pedal is in plays a role here and I don't mean to sound nit-picky, but you need to complete the "QTB" mod and then check your results.
It is very possible that completing the "QTB" mod will solve your problem.
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damian
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Post by damian on May 12, 2005 18:27:17 GMT -5
well recently ive been playing with my compressor alone through my 65 fender bassman amp. usually when i play with my other pedals i put it first before the others. is this the best placement? i guess i can also now see where the guitar may be the culprit and the noise may not be noticeable untill i switch on the pedal. i want to do the qtb mod but im not the best wiring guy. i did build this guitar and get it wired to stock wiring so im sure i could do it. is the star ground and the main thing that makes that qtb mod work. ive already got the copper shielding in place now all i need is to connect all grounds to one point at one end of the big cap and the other end to the tone knob? i guess i better go read that mod again. i guess my main ? was if it was worth doing the qtb mod and im leaning towards doing it.
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Post by StratLover on May 12, 2005 20:56:31 GMT -5
The "QTB" mod. is well worth the effort and it does work without a shadow of a doubt.
The star ground plays a pretty vital role here just as shielding (insulating) the return line and shielding the pickguard.
You have 85% of the job done and I encourage you to finish and then let us all know the results.
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Post by erikh on May 12, 2005 21:50:36 GMT -5
Putting the compressor first in line is the right way, or recommended way, to do it. I second the QTB mod as well, although I have star grounded mine but not fully shielded it. Still, it's quiet as a mouse.
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damian
Meter Reader 1st Class
Posts: 71
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Post by damian on May 14, 2005 9:47:18 GMT -5
thanks guys ill do that mod and reprt back. i dont know when ill get the time but it will be soon. i am also suspecting the wiring in the house has something to do with it. yesterday i was playing and it was tottaly quiet. i live in a very old CA. beach house. but im gonna do that mod anyhow.
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