Sorry I got the impression from earlier in the thread that these were a totem pole pair of fets . My bad Must be more careful to look at the manual. Regards dave ⁣Sent from BlueMail ​

Hi Tom, my thinking went thus:: I understood from previous posts that there were a pair of identical fets. I similarly understood they were "selected". If these two statements are correct I stand by m

Can I add a further thought to Ed Breya's suggestions. By all means use Ed's procedure to get the best possible spec for the required fet. But then try and match a pair of new ones. It seems to me muc

Hi Tim ... Rifa cap are notorious for this type of failure. Just replace it. Dave ⁣Sent from BlueMail ​