6Y6G GE 1943 used/good black plate, double filaments, crack in base (56ma) tested on amplitrex

1 tube) 6Y6G GE 1943 used/good black plate, double filaments, clear glass, crack in base

(56ma and Gm=7300)

– WAVAC SE-805, MD-805
– WAVAC 811
– JC Verdier 2A3 SET