Vintage NOS quality transistor socket for TO3

Vintage MULLARD AD149 PNP Germanium Power Transistor TO-3 NOS Audio Amp Part

BUT92 Encapsulation: TO-3 | Fast-Switching Power Transistor

10x TO-3 Transistor Thermal Insulator Set with Bushing/Washer

Insulated Transistor Cover, TO-3 Package - M414/TO3

BU941 STMicroelectronics Original Transistor TO3

5 Pairs 2SA1943 2SC5200 Amplifier Transistor PNP NPN High Power Black Audio S...

BUX98A TRANSISTOR TO-3