Sonotone

Brand on Tube Sonotone
Real Tube Manufacturer Mullard


Etched code on Tube xf2 B3
Factory Code B - Mullard, Blackburn
Tip Shape Pinched Tip
Glass Color Clear Glass
Mica Double
Getter O-O Double Getter
Plate Look Weld
Plate Color Matte Gray
Pin Color Silver
Other Marks Marked as made in West Germany, but most probably made in Blackburn UK
Sonotone by Mullard EL34 6CA7 xf2
Sonotone by Mullard EL34 6CA7 xf2
Sonotone by Mullard EL34 6CA7 xf2
Sonotone by Mullard EL34 6CA7 xf2
Sonotone by Mullard EL34 6CA7 xf2

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