Transistor - AC127, Germanium, TO-1 case, NPN
AC127 NPN germanium transistors. The AC127 is a popular NPN for fuzz pedals and other effects. The NPN polarity allows for use with standard pedal power supplies.
Transistor - Fender®, A1837, amplifier application
A1837 Transistor - Fender. Power amplifier applications and Driver Stage Amplifier Applications.