1 low noise tube) Tungsram Hungary branded Amperex NOS 1980 in white box
11.2ma Gm=11,500
11.0ma Gm=11,700
Good Ma range 10-12ma
Good Gm range 11,000 – 13,000
$12.00 $39.99
1 low noise tube) Tungsram Hungary branded Amperex NOS 1980 in white box
11.2ma Gm=11,500
11.0ma Gm=11,700
Good Ma range 10-12ma
Good Gm range 11,000 – 13,000
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