This miniature tube has 7 connector pins. "Rad-Tel Tube Co." and " IRVINGTON, N.J." are printed in white on the side of the tube. The box is red, white, and blue, with text that reads "RAD-TEL ELECTRON TUBE / GUARANTEED". "IR5" is stamped in black on the top of the box.
Manufacturer
Rad-Tel
Place Manufactured
Irvington, N.J., U.S.
Identifying Numbers
Other number
12/54
Printed in white on side of base
Part number
IR5
Printed in grey on side of tube
Dimensions
box: 3 in x 1 in x 1 in; tube: 2 1/8 in x 3/4 in x 3/4 in