Name that transistor

[MmmPedals]

I am trying to build a copy of old rare pedal it has transistors marked bc173b. I googled them and found them to be NPN transistors but the schematic i have for the pedal (drawn from this actual pedal) has PNP transistors. Is the scematic a mistake or am i reading something wrong. What else do you know about these transistors and what would make a good replacement if i cant find them?

[Ripthorn]

We could probably help you out more if you posted the schematic so we can see the context of the transistor.

Edit: If this is the same pedal as the other thread, then I guess posting the schematic is a no go.  However, are you sure the schematic indicates PNP?

[cpm]

if you are asking for help but wont show the schematic, theres little we can do but suggest you to learn by yourself.
good luck

[GP]

could it be that it's a bc178 with some of the paint lost? that's a pnp.