6J7G VT74 GEC Osram=Western Electric 348A Made in England

 6J7G VT74

EC=Western Electric 348A

Made in England 
KTZ63 6J7 VT-74 10E/11532
Special quality low noise very much similar quality as Western Electric 348A
MILITARY GRADE 6J7
GEC Osram MWT
NEW OLD STOCK (UNUSED) MINT CONDITION,
NEW IN ORIGINAL MILITARY BROWN BOX
Made in Gt. Britain in 1930’s
THESE TUBES ARE MADE WITH SILVER PILLAR PLATES INSIDE OF A ROUND PLATE
Black Coated Glass

Amplitrex 1000 Tested 

 Sr.No.612001 IpmAdc=1.8 uMhos=1100

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