BD-2 is the one that is highest on my list of the Cornish stuff. Sadly, there is no schematic avaiable yet but hopefully Aion Electronics will trace it soon *fingers crossed*.
I did and didn't work, (probably someone was in the mood for jokes),because there is no cut between D1-D2-22k(R12) and Pin4 of IC1.So as it is now, D1-D2-22k(R12)are connected to ground by shorting IC1.After that,it is functional and verified.
Odd, I built it without the cut and it was working. It’s lent out to a friend at the moment, but when I get it back, I’ll make the extra cut and see if it changes.
I found this one to be a good candidate for swapping IC's around until you find what you like. With TL071/072's I would always have some background clipping that I couldn't get rid of. I tried an LM741 and 4558 combo and found a tone I liked better, so it's worth experimenting with different IC's on this one.
Hi. I built mine, and have a very noticeable tone suck when it's in bypass mode. There's one thing I found in the schematic made by Aion: all other Cornish models that he traced have the resitor after the 51R one (end of buffer circuit) of 1M to ground. But only in the tracing of this CC-1, this resistor is of 10M. Maybe it's a typo that can affect to the tone in bypass?
Nice layout. Thanks a bunch. The resistor values from bass 1,2,3 should be 11k instead of 1.2k as mentioned above. This was changed in v1.01. Also for people who want to build it as a buffered bypass the buffer out is located in row R where the 10m resistor is located.
Awesome, got to try this one. Any chance of seeing the Cornish BD 2 ?
ReplyDeleteBD-2 is the one that is highest on my list of the Cornish stuff. Sadly, there is no schematic avaiable yet but hopefully Aion Electronics will trace it soon *fingers crossed*.
DeleteJust finished this and rocked it for 15 minutes. Everything works perfectly. I’ll be boxing this one for sure. Thanks for posting!
ReplyDeleteThanks Mike! Thats awesome, I'll tag it.
DeleteI am doing this,and i noticed that the ground resistor R1-1M at the input, in the Aion diagram is 10M.
ReplyDeleteI did and didn't work, (probably someone was in the mood for jokes),because there is no cut between D1-D2-22k(R12) and Pin4 of IC1.So as it is now, D1-D2-22k(R12)are connected to ground by shorting IC1.After that,it is functional and verified.
ReplyDeleteThanks for the catch. Cut is added.
DeleteOdd, I built it without the cut and it was working. It’s lent out to a friend at the moment, but when I get it back, I’ll make the extra cut and see if it changes.
DeleteThank you for the layout. Regards.
ReplyDeleteThanks for the CC-1, made PCB & built my new Cornish! Very nice overdrive, i love it!
ReplyDeleteNice! Are you using EAGLE for your PCB layouts?
DeleteI've been following the tutorial at Perf & PCB layouts lately and slowly learning it....
I use DipTrace, but im thinking about Eagle =). So look this David's tutorials https://www.youtube.com/watch?v=qFUOM34eEWM&feature=emb_imp_rv_ex
Deletehttps://www.youtube.com/watch?v=EMfNCTf9gp8&list=PLGCa8FTMTY-llXO6XzM_z_1z4knvdS33d
ReplyDeleteI found this one to be a good candidate for swapping IC's around until you find what you like. With TL071/072's I would always have some background clipping that I couldn't get rid of. I tried an LM741 and 4558 combo and found a tone I liked better, so it's worth experimenting with different IC's on this one.
ReplyDeleteHey there - this has recently been updated. Check the updated schematic, resistors from bass 1 and 3 are now 11k
ReplyDeleteThanks Andy. I will correct those values as soon I get the change.
DeleteHi. I built mine, and have a very noticeable tone suck when it's in bypass mode. There's one thing I found in the schematic made by Aion: all other Cornish models that he traced have the resitor after the 51R one (end of buffer circuit) of 1M to ground. But only in the tracing of this CC-1, this resistor is of 10M. Maybe it's a typo that can affect to the tone in bypass?
ReplyDeleteNice layout. Thanks a bunch. The resistor values from bass 1,2,3 should be 11k instead of 1.2k as mentioned above. This was changed in v1.01. Also for people who want to build it as a buffered bypass the buffer out is located in row R where the 10m resistor is located.
ReplyDelete