# 20N10L
# 12N10L
# 22NE10L
# IRF530
# STP22NE1
# 19N06L
# NTE2987
# IRL540

Transistors are all similar and may work.

The L has a different amp rating, but could be OK.

I grabbed them, they are IRF540N...

I wont put them in if they may do damage do anything else...I was reading another post on AA in relation to these as well:

http://www.aussiearcade.com.au/showthread.php?t=9863&highlight=P20N10

Given that there is an L on the existing mosfets I may hold off...unless someone else has actually used the IRF540N or can confirm they are safe!