For the XM & mods makers, here are a few 303 samples you can use in your productions.
First you can download a ZIP collection of 28 waves samples, single shots notes of various TB-303 sounds, very usefull for any soundtracker applications. It's 535k big and you can get it by clicking HERE.
Next you can listen to some Real Audio sequences I made with my own TB. Perhaps it could be usefull too if you convert them to standard wave format. Here they are :
The square wave after compression sounds better than saw wave.
NEW : Here is a strange sound created with a TB-303, the file is MP3 format : CLICK HERE to download it.