vt-51 841 TUBE NOS HYTRON MATCHED PAIR TUBES VALVE BLACK MONO PLATE HANGING RARE

TWO TUBES = 2 PIECES VT-51 841 HYTRON 

BLACK MONO PLATE 

BLACK RIBBED RUGGED RUGGEDIZED PLATE ANODE 

HANGING FILAMENT

SQUARE GETTER OVERLAPPED BOTTOM 

DOUBLE CERAMIC INSULATOR , PROFESSIONAL TUBES 

POWER TRIODE TRANSMITTING VALVE IN PAIR 

TESTED STRONG ON TV7 TUBE TESTER = 48 ; 44 (REFERENCE GOOD AT 25) MILITARY TUBES TRANSMITTING TRIODE 

transmitting triode 1930's

Socket    UX-Base 4 Pins 2 thick

Filament heater    Vf 7.5 Volt / If 1.2 Ampere / Direct / Battery =

Va <425; Pa <12W, 6MHz max

BOX 144