Both tubes have 7 connector pins. The GE logo and "MADE IN U.S.A." are printed in white on the side of the tubes. The boxes are off-white with "JG 6AU6" printed in black on the top flap and "ONE ELECTRON TUBE / JG 6AU6 / CONTRACTOR / GENERAL ELECTRIC CO. / MADE IN U.S.A. ACC. 10/52" printed in black on one side panel.
Date
1945 ca.
Manufacturer
General Electric Company (GE)
Place Manufactured
U.S.
Identifying Numbers
Other number
188-5
Printed in white on side of tube
Other number
2-52
Printed in white on side of tube
Other number
JG-6AU6
Printed in white on side of tube
Part number
6AU6
Printed in grey on side of tube and on box
Dimensions
box: 3 in x 1 in x 1 in; tube: 2 1/2 in x 3/4 in x 3/4 in