General Electric GE Vintage Electronic Tube Model 12AT7 Used Made in USA

General Electric GE Vintage Electronic Vacuum Tube Model 12BH7 Used

General Electric GE Vintage Electronic Tube Model JAN-12AT7WU Used

GE GENERAL ELECTRIC 7025 12AX7A TUBE TESTED

GE General Electric 5965 12AV7 Medium Mu Twin Triode Tube NOS Quantity Tested

(1) Tested GE 12AT7 Tube General Electric 12AT7 Twin Triode Tube (b)

(1) Tested GE 12AV6 Tube Date Code 58-48 General Electric 12AV6 Tube

GENERAL ELECTRONICS GE 12AX7 TUBE (circa 60s strong tested)