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ID = 24976
Brand: Longlife, the Hague
Tube type:  Current Regulator, Iron in Hydrogen 
  Ca. 1925 up to 1945 rare.
Identical to W452
Similar Tubes
Normally replaceable-slightly different:
Production stop Feb.1938

Base Europe 3-Pin B3 (Eu H)
Description used in 110V AC-DC Sets 
Text in other languages (may differ)
Information source Ballast Tube Handbook, The   
- - Manufacturers Literature   Sept. 1935

329_sockel~~3.png W452: Valvo-Elektronen-Röhren-Handbuch
Alexander Küffer

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