Upgrading my 4 pin Peterson preamp for Rhodes piano

[rockman627]

I've installed the Avion recapping kit. It also includes 2n3391a transistors, but no instructions. Can someone tell me if I can just drop them in or has the pinout changed since those olden days?

[4kinga]

Kindly remember, I know nothing.

That said, I always verify the NPN/PNP with a volt meter and refer to the original schematic for the pinouts.

[rockman627]

My concern is that the pinout of the transistor may have changed since the time of that old schematic. If the pinout hasn't changed over the years then I should be able to just drop the new ones in.
I say this because a  Vintage Vibe  Rhodes power amp I upgraded a few years back said the pinout on the new transistors were different.

[rockman627]

I just dropped the new transistors in exactly like the old transistors. Preamp worked fine.