This tube has 7 connector pins. "MADE IN U.S.A." is printed in yellow on the side of the tube. The box is off-white with black text that reads "One Electron Tube JAN-CBRZ-6X4 DA-36-039-SC-17720 LANSDALE TUBE COMPANY Acceptance Date: December 1951".
Manufacturer
Lansdale Tube Co. (LTC)
Place Manufactured
U.S.
Identifying Numbers
Other number
107
Printed in grey on side of tube
Other number
151
Printed in yellow on side of tube
Other number
JAN-CBRZ-6X4
Printed in yellow on side of tube
Part number
6X4
Printed in grey near top of tube
Dimensions
box: 3 in x 1 in x 1 in; tube: 2 1/2 in x 3/4 in x 3/4 in