transistor replacement 317 II - HELP

[letron]

I need your help to repare à sansui 317 II :

what components to replace two transistors (b527 and D357) from amp-card

I leave in France and i have many problems to find transistors replacement

Thanks a lot

 

[rhomanski]

For the 2sb527 you can probably use 2n4920 http://eu.mouser.com/ProductDetail/...2N4920/?qs=sGAEpiMZZMutncetXCRkflL3CrY/%2bkxw

For the 2sd357 you can probably use 2n4923g http://eu.mouser.com/ProductDetail/...2pyFaduiky3EmlTSG20a3VL%2bVvq%2bDpa43rdEQaA4=

Unless someone has better subs.

 

[EchoWars]

B527 - 110V, 800mA, 10W, B=100 min
D357 - 110V, 800mA, 10W, B=100 min

These are TO-220 devices. The 2N devices listed above are a bit shy on voltage, and also look to be lacking a bit of gain. Additionally, they are TO-126 devices, which may or may not be adequate, and probably have a different pinout as well. If the original TO-220's are heatsink mounted, then a different pinout is going to make them difficult/impossible to use.

How about the Toshiba 2SA1837 and 2SC4793? Mouser has both, and they should have the same pinout as your originals (this is something you must check on your own).

These are fully encapsulated devices, so if Sansui is using the tab as a live conductor (as they sometimes do), you won't be able to use them.

 

[skippy124]

B527 - 110V, 800mA, 10W, B=100 min
D357 - 110V, 800mA, 10W, B=100 min

These are TO-220 devices. The 2N devices listed above are a bit shy on voltage, and also look to be lacking a bit of gain. Additionally, they are TO-126 devices, which may or may not be adequate, and probably have a different pinout as well. If the original TO-220's are heatsink mounted, then a different pinout is going to make them difficult/impossible to use.

How about the Toshiba 2SA1837 and 2SC4793? Mouser has both, and they should have the same pinout as your originals (this is something you must check on your own).

These are fully encapsulated devices, so if Sansui is using the tab as a live conductor (as they sometimes do), you won't be able to use them.

These are not heat sink mounted in the 317/317II, and those subs look to be the same pin out as the originals.