Thanks! It's a nice distortion. I'm boring, I can't build anything now, but I had fun to trace it. It seems alright, except one thing. There's that 1k resistor in the bottom left corner not included in the schematic and it's of course a mistake because it goes from the ground to the ground. You may add only that Master 2 goes to the output hoping that somebody builds this to call verified. ;)
I'm glad to be useful as I can. The Tone pot is very basic, but the Contour pot is very interesting, it's a real mid control. A sort of Bass control will make it even more versatile.
I am confused about the meaning of the letter prefix of the pots. What do A and C mean (since it's different for europe, america and asia)? Also, what do the red squares with white dots and the black dot mean?
The letters denote the taper of the pot: A for logarithmic, B for linear, C for reverse or anti-logarithmic (there are other tapers, but these 3 are the most common).
The red dots indicate where there is a cut in the vero strip, and the black dots indicate a double-link (i.e. a hole in the vero where the ends of 2 links meet). By the way, when a red dot interrupts the line of a link, that does NOT mean the link is broken there. Rather, the link continues *over* the cut and terminates in its own hole.
Thanks, that clarifies! Would it be possible to use a regular log pot instead of a reverse log pot and wire it backwards? Or is there some drawback to this?
Thanks! It's a nice distortion.
ReplyDeleteI'm boring, I can't build anything now, but I had fun to trace it.
It seems alright, except one thing. There's that 1k resistor in the bottom left corner not included in the schematic and it's of course a mistake because it goes from the ground to the ground.
You may add only that Master 2 goes to the output hoping that somebody builds this to call verified. ;)
Thanks for your seet of fresh eyes:-)
DeleteLooks like a nice distortion indeed, from the Guvnor camp.
I'm glad to be useful as I can.
DeleteThe Tone pot is very basic, but the Contour pot is very interesting, it's a real mid control.
A sort of Bass control will make it even more versatile.
Hi fuzzhead. This is also VERIFIED.Beautiful classic rock distortion.
DeleteThank you! I've tagged it.
Deletetone 2&3 connected with ground. is it right?
ReplyDeleteYes, that is correct.
Deletehttps://www.pedalpcb.com/docs/UltisolDistortion.pdf
I want to see the playing sample of this conduct :)
ReplyDeleteHi fuzzhead! Late to the party but I count 27 cuts. Maybe you want to update it to avoid confusion for future builders, but its not a big deal.
ReplyDeleteThanks for the catch. Fixed.
DeleteI am confused about the meaning of the letter prefix of the pots. What do A and C mean (since it's different for europe, america and asia)? Also, what do the red squares with white dots and the black dot mean?
ReplyDeleteThe letters denote the taper of the pot: A for logarithmic, B for linear, C for reverse or anti-logarithmic (there are other tapers, but these 3 are the most common).
DeleteThe red dots indicate where there is a cut in the vero strip, and the black dots indicate a double-link (i.e. a hole in the vero where the ends of 2 links meet). By the way, when a red dot interrupts the line of a link, that does NOT mean the link is broken there. Rather, the link continues *over* the cut and terminates in its own hole.
Thanks, that clarifies! Would it be possible to use a regular log pot instead of a reverse log pot and wire it backwards? Or is there some drawback to this?
DeleteYou can do that but max gain would then be fully CCW. A linear pot might do okay. Just make a temporary connection before committing.
DeleteOkay thanks. If linear doesn't work I'll try to find a reverse log, they're just a little harder to come by.
Delete