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GR22-4

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ID = 30134
       
Country:
Germany
Brand: Deutsche Glimmlampen GmbH, (DGL), Otto Pressler; Leipzig
Tube type:  Voltage Regulator, single 
Identical to GR22-4

Base Europe 4-Pin B4 (Eu A, E, 4A) 1914
Filament
Information source Universal Vade-Mecum, Electron Valves and Semiconductor Devices   group 488
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