Anyone know what this transistor does?
MJE3055T or E3055T
View attachment 997297
Rockford Fosgate Power 300 power supply section under the RED arrow.

MJE3055T or E3055T
View attachment 997297
Rockford Fosgate Power 300 power supply section under the RED arrow.

Attachments
This seems to be an ordinary Motorola MJE2955T transistor made in Mexico. The 'M' is on the top row left of the Mexico mark, the 'J' is on the right and 'E2955T' is the second line of markings.