This octal tube has 5 of the original 8 connector pins extant. "RCA ELECTRON TUBE", the RCA logo, and "MADE IN U.S.A." are printed in orange on the tube collar.
Manufacturer
Radio Corporation of America (RCA)
Place Manufactured
U.S.
Identifying Numbers
Part number
5U4GB
Printed in grey on side of tube
Dimensions
box: 4 5/8 in x 1 5/8 in x 1 5/8 in; tube: 4 in x 1 5/8 in x 1 5/8 in
