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ID = 75006
Brand: Rogers-Majestic, Standard Radio Manufacturing, Rogers Radio Tubes; Toronto
Tube type:  Transmitting Triode, air cooled   Power/Output 
Identical to AR300A
Similar Tubes
Normally replaceable-slightly different:

Base Jumbo 4-pin bayonet (1918)
Filament Vf 14 Volts / If 6 Ampere / Direct / Specified voltage AC/DC

250W triode for use in audio and radio frequencies up to 1.5 MHz at full power.

Amplification factor 16 with a mutual conductance of 8.5mA/V at 7kV anode voltage.


Dimensions (WHD)
incl. pins / tip
85 x 335 x mm / 3.35 x 13.19 x inch
Weight 600 g / 21.16 oz
Information source -- Collector info (Sammler)   

ar300a.png AR300A: Fin Stewart
Fin Stewart

Just Qvigstad

Collection of



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