In a message dated 9/25/2008 5:38:45 P.M. Eastern Daylight Time, astroboy@cinci.rr.com writes:
Hi Bruce. According to the Dave Kean M400 Fix-it Book, the tone pot
(listed as R4) is a 25k Log, not audio taper. The volume pot (R1) is
listed as 10k Log. That's what it says...
johnbarrick
log(arithmic) and audio taper are the same thing. I was able to find original (in the box and unused) 10k, 15k and 25k pots on line and I bought a bunch of them. The shafts need to be cut to 1". Only the 50k pitch pot is linear. Both Streetly and Markus offer quality replacements if needed as well. I have substituted a 15k pot for volume with no problems whatsoever.