(!) 6DJ8 Mullard England branded Amperex “”A”” frame like new 1986 (12.6/13.4ma)

1 low noise tube) 6DJ8 Mullard England branded Amperex “”A”” frame like new 1986 in white box

1 section) 12.6ma Gm=11,600

1 section) 13.4ma Gm=12,100