(!!) (Recommended Pair) 6Y6GA Sylvania NOS same build (51ma and 55.5ma)

1 pair) 6Y6GA Sylvania NOS same build
1 tube) 51.0ma Gm=6000
1 tube) 55.5ma Gm=6200

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