• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

Pioneer SA-7500 II power stage - transistors replacement

lebrun53 said:
I arrived at this post hoping to confirm my substitution choice for 2SC1438.
The original poster, Moncho, was asking if his subs were acceptable.
I saw cross references substituting NPN for PNP and vice-versa.
There seems to be no mention of this in the responses.
Am I missing something here?
(I realize I am late to this posting)
Larry

all PNP - OK
Q13/14
Original PNP 2SB618A
Option 1 PNP MJL1302AG
Option 2 PNP MJE15031G

all NPN - OK
Q15/16
Original NPN 2SD588A
Option 1 NPN MJL3281AG
Option 2 NPN MJE15032G

INCORRECT
Q9/10
Original PNP 2SB527
Option NPN KSC2690AYS

INCORRECT
Q11/12
Original NPN 2SD537
Option PNP KSA1220AYS

INCORRECT
Q5/6
Original NPN 2SC1438
Option PNP KSA992FATA

INCORRECT
Q7/8
Original PNP 2SA857
Option NPN KSC1845FTA
Click to expand...
I recommend starting a new thread in the Pioneer sub-forum.
 
You must log in or register to reply here.
Back
Top Bottom