This tube has 7 connector pins. The RCA logo and "MADE IN THE U.S.A." are printed in white on the side. The tube is enveloped by a card stock insert, which slides into a rectangular card stock sleeve with black text. The text reads "US ARMY - US NAVY TUBE JAN-JRC-2D21 CONTRACT NXSA-59081 CONTRACTOR WELLS-GARDNER & CO."
Manufacturer
Radio Corporation of America (RCA)
Place Manufactured
U.S.
Identifying Numbers
Other number
H6E
Printed in white on side of tube
Other number
JRC 2D21
Printed in white on side of tube
Part number
2D21
Printed in grey on side of tube
Dimensions
box: 1 in x 2 in x 2 1/2 in; tube: 2 1/8 in x 3/4 in x 3/4 in
