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(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's branded National 1962 (25.8ma and 26.4ma) 1-3% matched (same Gm)
(!!!!!) (Best Pair) 10Y=VT-25 SYLVANIA NOS 1940's branded National 1962 (25.8ma and 26.4ma) 1-3% matched (same Gm)
$ 199.99
1 tube) 10Y=VT-25 SYLVANIA NOS 1940's branded National 1962 in white boxes
1 tube) 25.8ma Gm=2000
1 tube) 26.4ma Gm=2000
Good current range 20-30ma
Vplate=300V Vgrid=-15V
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