21-09-2015, 11:05 AM
It is also possible to replace AF11x series transistors with Russian germanium devices such as the GT322, which is TO-72 cased like an AF127 but the pin-outs are as the AF139, meaning that the base & emitter connections are reversed compared with the AF124, 125, 126 7 127. These are usually available from E-Bay sellers for around £1 each, though I haven't checked availability recently
