(!!!) (Best Value Pair) 6106 Bendix 1950's rebranded 5Y3WGTA Heintz & Kaufman NOS (66/40 and 70/40 x 2 tubes)

1 matched pair) 6106 Bendix NOS 1950's rebranded "5Y3WGTA Heintz and Kaufman" in H & K boxes 1970's double "D" getter halos

1 tube) 66/40 and 70/40

1 tube) 66/40 and 70/40

6106 is a indirectly heated (slow warmup) sub for a 5Y3GT

5Y3GT has a directly heated filament