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ID = 50438
United States of America (USA)
Tube type:  Full-Wave Cold-cathode-rectifier   Power-supply 
Identical to 85-mills. = Super-Power_Majestic

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament No heater

Later Majestic rectifiers were made by QRS, before QRS lost a patent suit to Raytheon.

200 V; 85 mA

Dimensions (WHD)
incl. pins / tip
x 108 x 45 mm / x 4.25 x 1.77 inch
85-mills.: ebay
Anonymous 15 Collector

More ...
85-mills.: ARRL Handbook 1972
Anonymous 10 Collector

85-mills.: Manufacturer's Literature
Anonymous 15 Collector

from Just Qvigstad

Usage in Models 1= 1926 ; 2= 1927

Quantity of Models at with this tube (valve, valves, valvola, valvole, válvula, lampe):3

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