Rodan-Okaya Tubes

Tubes made by Rodan-Okaya. From their web site:

In 1958, we delivered our first number display tube and started production of display discharge tubes GR-1, GR-2.

In 1962 we registered the trademark “Rodan”

Though they themselves used both “Rodan” and “Rodin”.
Datasheets are at the end of this page
CD12

Rodan-Okaya CD12 tube

CD13

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

CD14

Rodan-Okaya CD14 top-view symbol 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.

CD28

The CD28 is a small nixie tube made by Rodan-Okaya of Japan.

CD47

The CD47 (GR-414) is the largest tube in the world, with a digit height of 135mm. It was made by Rodan-Okaya of Japan.

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.

GR-111a

The GR-111a is a small side-view nixie tube made by Rodan-Okaya of Japan

GR-115

The GR-115 is a small nixie tube made by Rodan-Okaya.

GR-201

Rodan Okaya GR-201

GR-211

A medium-sized tube manufactured by Rodan-Okaya

GR-524

The GR-524 is an extremely rare symbol tube made by Rodan-Okaya. It shows the abbreviated days of the week in Kanji.

GR-574

The GR-574 is an extremely rare nixie tube made by Rodan-Okaya of Japan.

GR-707

The Rodan-Okaya GR-707. A small top-view nixie tube showing electrical symbols. Clearly intended for use in a multi-meter. This has the unusual feature of a side-nipple. The pin arrangement is also very unusual.

GR-836

The Rodan-Okaya GR-836 is a large and extremely rare top-view 'nixie' tube. It has two Japanese symbols, which as far as I can tell mean 'power' and 'on'.

GR-1485

The GR-1485 is a symbol tube made by Rodan-Okaya of Japan. It has the letters A through J

GR-43091

The GR-43091 is a symbol tube made by Rodan-Okaya of Japan. It has the letters A through J

GR-B

The Rodan GR-B is an unusual nixie tube. It displays the numbers 0 through 10.

Unknown 1

This is an unknown Rodan tube that just has the characters 'A' and 'R' in it. It uses the same envelope as the GR-201

Datasheet for Rodan GR-1, GR-2, GR-3, GR-4, GR-5, GR-6, GR-7, GR-8 and GR-11

1958_GR-1_2

 

Datasheet for Rodan GR-11

1959_GR-11

 

Datasheet for Rodan GR-110 and GR-116

1970_GR-110_116

 

Rodan Brochure for CD11, CD12, CD13, CD14, CD15, CD20, CD21, CD22, CD23, CD24, CD25, CD27, CD28, CD38, CD40, CD42, CD43, CD47, CD66, GR-111a, GR-116, GR-110, GR-211, MG-17G, MG-19B, CD78, GR-111pa

1970_D4512-AA-1

 

Rodan brochure for CD11, CD12, CD13, CD24, CD25, GR-414, GR-211, GR-311, GR-110, GR-116p, GR-111p, CD66p, MG-17G, MG-137, MG-157

1974_ED4907-AA-1

 

Datasheet for Rodan CD11, CD12, CD27, GR-211, GR-311 and GR-414

1976_F5201-1