(!!!) (Best Pair #4) 7788 Amperex PQ USA gold pins NOS 1969-1974 (39.5ma and 43ma)

1 matched pair) 7788 Amperex PQ USA gold pins NOS 1969-1974 in white boxes
1 tube) 43.0ma Gm=48,000 (1969)
1 tube) 39.5ma Gm=50,500 (1973-1974)

(Frame-Grid 10,000-hour low-noise Pentode, Filament=6.3V @ 340ma)

– Allnic H-3000 phono
– Allnic L-1500 linestage
– Allnic L-3000