150-0047-00

Stan Griffiths says

This bulb is known as a Type 398. Also known as manufacturer’s part number OL-398.

Tek purchased these from:

Oshino Electric Lamp Works, LTD

5-2 Minami-Shinagawa 2-Chome

Shinagawa-ku

Tokyo, Japan

Specs

• Chicago Miniature Lamp Specs (PDF)

Used in

• 520A
• 521A
• 7603
• OS-245

Pictures

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