Ultra Rare Mullard 6SN7GT B65 Metal Base Valve Tube NOS Tested Strong (V39)

Mullard, Made in Great Britain. Ultra Rare 6SN7GT B65 CV1988 Metal Base Valve Tube. Grey Glass, Black Plates, Cup Getter. Fully Tested on AVO VCM 163. Ia 13.3/11.2 - Gm 3.3/3.1. Super Clean, No Staining on the Top. NOS, Supplied in White Box.