Description
(!!!!!) (Recommended Pair) 10Y=VT-25 SYLVANIA NOS 1940’s branded National 1962 (25.8ma and 26.4ma) 1-3% matched
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