Ok, i'm very angry.
I sold my rangemaster to a friend (because he really wanted it and he's a good friend), so i bought
another Transistor from SmallBear.
Today i got it and i found out I bought a NPN !
What am i gonna do? how do they sound compared to PNP?
I'm very disappointed of myself :-[
Are you using a board with a built in charge pump like the newest version from the Bean, or something that just has a -9v and ground to hook power to? If it is non charge pump just put +9v where you'd normally have -9v, and if you are using any electrolytics that had the +leg going to ground, reverse them. With the current MBP board reverse D1 and the LED, omit C5,C6,C7 and D2, reverse C3 and C8, and jumper pad 1 to pad 5 on the charge pump chip section
NPN or PNP doesn't really influence the sound and both can make excellent rangemasters. They just need a different circuit (or some tweaks) like Timbo suggested.