"Gary @btopenworld.com" FirestormVTRsp10 wrote in message
...
I tried replacing a set of Hitachi 2SJ-49/2SK134 mosfets with Exicon
MOSFET
Direct replacements from Maplins, i could not get them to work at all, has
anyone else tried these replacements?

Gary

Hi Gary,
does the amp have more than one pair of these devices per channel (i.e. in
parallel)? i have had RF/instability problems with these devices when i have
tried to mix them. only cure i found was replace all of the same brand
device on one channel.
bob