Reg# For F27664,Chssis CTC 202AX

[Frank]

Please some body Have Regulator # for this chassis CTC203Ax Q14101. the one that is there is made in china ST N7 orW7 J922 P9NB50, i have ST9503 is this one any good to sub. Thanks in advance.

[gary]

the regulator is actually a mosfet-e stp9nb50 rated at 500v 8.6A 125w, readily available from maplin or any electrical stockists, equivalents are 2sk1503, 2sk2366, 2sk2866. very unusual for it to fail on its own, normally killed by something else, check for dry joints on high voltage caps or resistors having changed in value.