Matched FETs for Tonepad Phase 90

[chimpzilla]

Hi guys  - i've found a tonepad pcb for their phase 90 pedal and thought I'd build it up.

http://www.tonepad.com/getFileInfo.asp?id=42

However i'm struggling to find info (on the tonepad site or the web) about how to match FETs, what paramaters or values to look for if I test a bag. Can anyone offer some advice ?

Cheers,
Dean.

[anchovie]

http://www.geofex.com/Article_Folders/fetmatch/fetmatch.htm

[chimpzilla]

brilliant, thanks for that.

[B Tremblay]

http://runoffgroove.com/fetzervalve.html#11