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ID = 67831
United States of America (USA)
Brand: Edison, Thomas A., North American Phonograph / National Phonograph; Orange, NJ
Tube type:  Relay in glass (not Relay Triode) 
Identical to 501-B2024

Base Octal (Int.Octal, IO) K8A, USA 1935
Filament Vf 6.3 Volts / Indirect

Thermal delay relay, 30s delay. normally open, 3A , 150V DC, 250V AC

Dimensions (WHD)
incl. pins / tip
33 x 83 x mm / 1.30 x 3.27 x inch

501~~1.png 501-B2024:
Peter Veldman

Just Qvigstad

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