"Gareth Magennis"

The problem is around the two Lateral Mosfets Q16 and Q21 (EXC10N20 /
10P20).

Another major problem is actually getting these Mosfets - you can't, as
far as I can tell, and Allen and Heath no longer supply parts,

** Semelab BUZ901P and BUX906P are the same devices made in the same
factory.

http://uk.farnell.com/semelab/buz901...83?Ntt=buz901p

http://uk.farnell.com/semelab/buz906...85?Ntt=buz906p

Can you post that schem somewhere other than ABSE ??

Like most here, I have no access.


...... Phil