This tube has 9 connector pins. "SYLVANIA" and "MADE IN U.S.A." are printed in white on the side of the tube. The box is off-white with black text. The text on the box reads: "ONE ELECTRON TUBE JHS-12AT7 CONTRACT NO. AF33 (038) 18497 MF'D BY SYLVANIA ELECTRIC Acceptance Date 5-53".
Manufacturer
Sylvania Electric Products, Inc.
Place Manufactured
U.S.
Identifying Numbers
Other number
320
Printed in white on side of tube
Other number
JHS 12AT7
Printed in white on side of tube
Part number
12AT7
Printed in grey near top of tube and in black on the box
Dimensions
box: 3 in x 1 in x 1 in; tube: 2 1/8 in x 13/16 in x 13/16 in
