


Six germanium surface barrier transistors

Four germanium point-contact transistors

Thirty germanium junction transistors

Transistors

Five silicon mesa transistors

Silicon planar transistors of various make

Seven silicon power transistors

GET 3 transistor
circa 1950

Philco T1925 transistors

Transistors

Darling Transistors

Transistors

Transistors

Transistors

Transistors
