Transistor ?

[Valvehead]

My schematic shows a transistor as 2SC1015

i cant find a replacement

i CAN find a 2SA1015 , and the actual part is labeled A1015

will the 2sc be the same part as a 2SA ??

[mhuss]

No, they are not the same. The 2SC1015 is an NPN and the 2SA1015 is a PNP.

I'd use whichever one (NPN/PNP) the schematic symbol shows. They're both generic TO-92 medium-power 50v transistors. THe (expensive) NTE290A is a direct substitute for the 2SC.

[52 Bill]

...and the actual part is labeled A1015

If the actual part is marked as A1015, then I would assume that the correct part is a 2SA1015 and the schematic is wrong.

[Valvehead]

ok thanks

[mozz]

If the unit was working properly, go with the part number marked on the part itself, A. Schematics are often wrong, and sometimes proof readers don't give shit.

[olddawg]

No offense meant, but if you don't know the difference between a PNP and an NPN transistor..... Are you sure it's bad?

[The Dude]

Edited after further consideration:

The schematic could be wrong. Or, somebody could have installed the wrong part. We don't know for sure. Can you upload the schematic so we can try to determine which scenario it is? Did the thing work and then fail? Has someone else worked on it and maybe installed the wrong part?

[Enzo]

I am confused. In the first post he needs a 2SC1015. An actual 2SC1015 would be labelled C1015. He says he can find 2SA1015. "The actual part says A1015." WHich actual part? The one in your amp or the one you can find?


Look at the schematic, is the "2SC1015" PNP or NPN? A C1015 would be NPN. If the part is PNP< then I agree the A1015 is what was intended.

As someone already said, A1015 and C1015 would never be the same part. In Asian transistor numbers 2SA and 2SB are PNP by definition, and 2SC and 2SD are always NPN.

If you are ordering parts, there is almost NEVER a reason to use NTE. There are plenty of plain old parts that will work. PNP small signal Asian types abound.