On Wed, 06 Apr 2011 15:45:02 +0100, Gareth Magennis wrote:

p.s. it has been repaired at a place I know about that is well known for
dodgy repairs, and the soldering is absolutely shocking.

Why not just replace all 4 with known pairs? TT manufactures
a bunch of different audio mosfet devices
http://www.semelab.com/magnatec/alfet.shtml



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