Numeric Tubes

Numeric tubes

B54370A

The B54370A seems to be a variation of the B5441A - it has a comma in place of one of the decimal points, probably for use in displaying thousands.

CD12

Rodan-Okaya CD12 tube

CD13

The CD13 by Rodan-Okaya. A miniature top-view nixie tube.

CD24

A CD24 tube made by Rodan-Okaya.

CD25

Rodan CD25

CD27

The CD27 is the largest top view nixie made by Rodan Okaya - at 54mm, the numerals are larger than the NL7037 and Z568.

CD72

The Matsushita CD72 is a small Nixie tube with a digit height of 13mm. It includes a right-hand decimal point.

GI-10

National Union GI-10 Inditron. Widely accepted to be the first mass-produced 'nixie'.

GI-21

National Union GI-21 Inditron

GN-4P

This version of the GN-4 has a red-coating and a decimal point on the left and was manufactured by Lorenz SEL.

GN5

ITT GN5. A medium-sized top-view Nixie tube

GN-13A

ITT GN-13A Nixie Tube

GR-1

The GR-1 is one of the first nixie tubes made by Rodan-Okaya (the other being the larger GR-2). You can see that the lettering on the tube is spelled Rodin, which is typical of the earlier tubes. This tube became the GR-201 and eventually the CD11.

GR-2

Rodan-Okaya GR-2. Apparently an earlier version of the CD12.

GR10G

The GR10G is a medium sized tube manufactured by ETL. It is unusual in that there is no solid back to the tube, so the digits can be viewed all the way around.

GR10J

The GR10J numicator by HIVAC. A lot of HIVAC tubes have a distinctive gold-colored anode.

GR10W

This is the GR10W digitron - a medium-sized nixie tube by the English company ETL. Like its bigger brother the GR10G, this tube has a 360 degree anode mesh with no solid backing. Also like its brother, it has unusually high voltage and current requirements.

GR-201

Rodan Okaya GR-201

GR-211

A medium-sized tube manufactured by Rodan-Okaya

IN-18

The Gazotron IN-18 is the largest soviet Nixie tube, with 40mm digits.

NL5441A

A smooth-topped version of the B5441/NL5441. This became very popular when a few Divergence Meters were built using this tube.

NL7037

The NL7037 is the largest American nixie tube. It is the same size as the Z568M.

XN-13

Hivac XN-13 Numicator. This has Hivac's signature gold-colored anode grid.

Z568M

A Z568M tube manufactured by WF/RFT