GEC is the General Electric Company of England, not the one from the U.S.A. These are occasionally branded as Mullard. Full write-up on GEC / GET transistors can be found here
GEC GET 102 – 114 GERMANIUM TRANSISTOR DATA
Type V Max Hfe P Max (mW) I Max f (Mhz)
GET102 30 100 200 1000 1.5
GET103 30 55 200 1000 1
GET104 30 55 200 1000 1
GET105 40 30 800 1000 0.9
GET106 15 55 200 1000 1
GET110 40 20 800 1000 1
GET111 60 55 200 1000 1
GET113 15 100 200 1000 1.5
GET114 15 55 200 1000 1
