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 and with black text. The text on the box reads:"ONE ELECTRON TUBE JAN-CHS-12AU7 S.C. ORDER NO. 24593-PHILA-51-13A SYLVANIA ELECTRIC PRODUCTS INC. ACCEPTANCE DATE 11-51".
Manufacturer
Sylvania Electric Products, Inc.
Place Manufactured
U.S.
Identifying Numbers
Other number
147
Printed in white on side of tube
Other number
3 C A 109
Printed in white on side of tube
Other number
JAN CHS 12AU7
Printed in white on side of tube
Part number
12AU7
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