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ID = 83027
Great Britain (UK)
Brand: Ediswan, Siemens Edison Swan Electric Co.; London
Tube type:  Voltage Limiter, rare gas filled 
Identical to DRG36

Base Edison big E27 = 27 mm Top contact screw type.
Was used by Telephony

This tube is neon/helium filled, with radioactive source for constant firing.

Max. current per line 20 amps, max. charge passed (Amp-secs) 250, Volts r.m.s. 150 - 300

Dimensions (WHD)
incl. pins / tip
x 158 x 35 mm / x 6.22 x 1.38 inch
Information source - - Manufacturers Literature   Ediswan tube catalog January 1959
DRG36: Ediswan tube catalog January 1959
Fin Stewart


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