Ludwig Phase II pedal pot error.

Started by digi2t, May 01, 2012, 08:26:26 PM

Previous topic - Next topic

digi2t

I'll be adding this to the debugging thread as well.

I've started my build, but something was bugging me about the pot value. I don't know why, but to ease my mind, I decided to remeasure the pot resistance.

The pedal pot IS NOT 5K. I made a mistake by not completely diconnecting the wiring before measuring, that's why I got a nice 5K reading. With the wires off, it comes in at 11K. Yes... 11K. A 10K should be fine though, since we're not using the ends of the pot travel.

My sincere, and profuse, apologies if this created any undue problems with anyones build. Just a bonehead move on my part.

I've already face-smacked myself a few times, but if anyone else feels like giving me a shot as well, feel free.

R.G., you'll have to update the build article, including maybe the section on faking the pot. Also, transistor QF+1(NPN) is not listed on the BOM. This transistor is a 2N4401 in the original units.
  • SUPPORTER
Dead End FX
http://www.deadendfx.com/

Asian Icemen rise again...
http://www.soundclick.com/bands/default.cfm?bandID=903467

"My ears don't distinguish good from great.  It's a blessing, really." EBK

R.G.

Source updated and on line.

Actually, Qf+1 is listed in the BOM. It's listed as a 2N5551, which (I think...) works fine in this application.

I think I caught all mentions of the rocker pot, but I'm error prone. If anyone finds one I missed, let me know.
R.G.

In response to the questions in the forum - PCB Layout for Musical Effects is available from The Book Patch. Search "PCB Layout" and it ought to appear.

pinkjimiphoton

  • SUPPORTER
"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
"try whacking the bejesus outta it and see if it works again"....
~Jack Darr