(!!!!!) (Best Amperex Pair) JAN-7308 Amperex USA gold pins NOS 1977 (15.0/16.4ma and 15.2/15.8ma)
By Tube World
1 low noise pair) JAN-7308 Amperex USA gold pins NOS 1977 (VR6 series)
1 tube) 15.0/16.4ma Gm=13,000/13,200
1 tube) 15.2/15.8ma Gm=13,300/13,700
Matched on Amplitrex
Vplate=90V
Vgrid=-1.2V
Good Ma range 12-15ma
Good Gm range 11,000 - 12,500
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 (Best Amperex Pair) JAN-7308 Amperex USA gold pins NOS 1977 (15.0/16.4ma and 15.2/15.8ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_24aa373d-009e-4e4a-a6b2-eff76d2965b2.jpg?v=1677048010){kind=link}
 (Best Amperex Pair) JAN-7308 Amperex USA gold pins NOS 1977 (15.0/16.4ma and 15.2/15.8ma) "Pin It")