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yeah i soldered the - input wire from driver to the heatsink, and at the moment it's running on two cr123a '(so about 7.2 volts). My meter is a bit messed up so, although i woudn't advise this, i just turned the laser on and (carefully and slowly) adjusted the pot until the uncollimated beam was...

eeerrr, well my host (cr123a torch) was case negative so i kept the diode housing isolated(its anodized) and put it in an aluminium heatsink which i soldered the - connection to and screwed it into the torch, (its not as complicated as you think, i'll try and get some pics). And i just cut off...

awesome, count me in too! :worthy:

yeah, you probably just want to leave out the "-ve or null" terminal. ive recently finnished my 803t with the same circuit and thats what i did (and it works, at around 100mw). :)