Hey friends,
After I've built glitterratti, I tried to built Boneyard "Modified" (Carl martin Plexitone as listed in http://www.madbeanpedals.com/projects/Boneyard/docs/Boneyard.pdf) and It was great sound. I followed all the Boneyard.pdf, including 47 Ohms Resistor value, 151pF,etc.
I have a quick question, that some of MB members have faced down, pretty sure, I also on the same boat with them, but mine, quite weird.
The Problem
I came up with ICL 7660 for the IC2 and LF347 for the IC1, seems ICL 7660 works for this project, but I got a whine sound or some of members here called oscillation when I turned up the tone pot from my Guitar, about 50 to 100 percent of tone, then I tried to lower it down, and turned up my guitar volume to full knob, I still got the whine, and also when I turned down the guitar volume until 50%.
My thoughts about this issue
After several discussion with my close friend who have been built some several pedals, he said first try is to give the INPUT and OUTPUT jack a shielded cable, so it will reduce hi-gain frequency.
If it's not give any differences, so I tried to put 1K resistor near between INPUT lug and GROUND lug at ON/OFF 3PDT
My friend also told to me lower the caps value from the ICL7660 or change into MAX1044 (as it mentioned in pdf)
My questions
1) Will the shielded cable kill the whine / oscillation of my boneyard ? If it does, then I will do it
2) What should I do to kill the whine problem between my boneyard and guitar volume/tone problem ?
3) Will Boneyard wipe the whine if I change the ICL7660 into MAX1044 ?
4) Do you have some other ideas not listed here? Please tell me
Thank you
Pics
422812_10150573746782775_714997774_9329677_1168231226_n by andrapgm03, on Flickr
420946_10150573745507775_714997774_9329673_782583577_n by andrapgm03, on Flickr
425241_10150573744072775_714997774_9329668_845223686_n by andrapgm03, on Flickr
409504_10150573738497775_714997774_9329628_1201578178_n by andrapgm03, on Flickr
398744_10150573744712775_714997774_9329671_1298984559_n by andrapgm03, on Flickr
After I've built glitterratti, I tried to built Boneyard "Modified" (Carl martin Plexitone as listed in http://www.madbeanpedals.com/projects/Boneyard/docs/Boneyard.pdf) and It was great sound. I followed all the Boneyard.pdf, including 47 Ohms Resistor value, 151pF,etc.
I have a quick question, that some of MB members have faced down, pretty sure, I also on the same boat with them, but mine, quite weird.
The Problem
I came up with ICL 7660 for the IC2 and LF347 for the IC1, seems ICL 7660 works for this project, but I got a whine sound or some of members here called oscillation when I turned up the tone pot from my Guitar, about 50 to 100 percent of tone, then I tried to lower it down, and turned up my guitar volume to full knob, I still got the whine, and also when I turned down the guitar volume until 50%.
My thoughts about this issue
After several discussion with my close friend who have been built some several pedals, he said first try is to give the INPUT and OUTPUT jack a shielded cable, so it will reduce hi-gain frequency.
If it's not give any differences, so I tried to put 1K resistor near between INPUT lug and GROUND lug at ON/OFF 3PDT
My friend also told to me lower the caps value from the ICL7660 or change into MAX1044 (as it mentioned in pdf)
My questions
1) Will the shielded cable kill the whine / oscillation of my boneyard ? If it does, then I will do it
2) What should I do to kill the whine problem between my boneyard and guitar volume/tone problem ?
3) Will Boneyard wipe the whine if I change the ICL7660 into MAX1044 ?
4) Do you have some other ideas not listed here? Please tell me
Thank you
Pics
422812_10150573746782775_714997774_9329677_1168231226_n by andrapgm03, on Flickr
420946_10150573745507775_714997774_9329673_782583577_n by andrapgm03, on Flickr
425241_10150573744072775_714997774_9329668_845223686_n by andrapgm03, on Flickr
409504_10150573738497775_714997774_9329628_1201578178_n by andrapgm03, on Flickr
398744_10150573744712775_714997774_9329671_1298984559_n by andrapgm03, on Flickr