(!!) (Best RCA Pair) 6Y6GA RCA clear top black plate 1965 (67.5ma and 68ma)

1 matched pair) 6Y6GA RCA clear top black plate 1965
1 tube) 67.5ma Gm=6750 (AQ) 1965
1 tube) 68.0ma Gm=6900 (AT) 1965

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