Recently I bought a Pioneer SA710 amplifier from someone.. It works very fine. But when I opened it for clean, I found a little "surprise" at final stage.
On one channel were:
2SA1075 (F) (maybe fujitsu from what I read in datasheet) MS-X black case with heatsink
2SC2525 (F) MN-X black case with heatsink
On the other channel were:
2SA1075 (F) PY-G green case with heatsink
2SC2588 (NEC) ROZA black case with heatsink
From what I read the pair is in fact 2SA1075 with 2SC2525 (respectively 1076 with 2526)... the same pair can be found on ebay under 3 formats: case with heatsink green+black (rectangular, similar as a TDA7294), 100% plastic case (rectangular) or another case bigger than TO220...
My question is: why the combination with a 2SC2588? I saw that could have the same power as 2SA1075.. should be repaired by someone and from lack he put this?
Any idea is welcome.
On one channel were:
2SA1075 (F) (maybe fujitsu from what I read in datasheet) MS-X black case with heatsink
2SC2525 (F) MN-X black case with heatsink
On the other channel were:
2SA1075 (F) PY-G green case with heatsink
2SC2588 (NEC) ROZA black case with heatsink
From what I read the pair is in fact 2SA1075 with 2SC2525 (respectively 1076 with 2526)... the same pair can be found on ebay under 3 formats: case with heatsink green+black (rectangular, similar as a TDA7294), 100% plastic case (rectangular) or another case bigger than TO220...
My question is: why the combination with a 2SC2588? I saw that could have the same power as 2SA1075.. should be repaired by someone and from lack he put this?
Any idea is welcome.