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(READ REVIEW) JAN-CHS-10Y=VT-25 SYLVANIA NOS 1940's same construction (27ma and 29ma)
(READ REVIEW) JAN-CHS-10Y=VT-25 SYLVANIA NOS 1940's same construction (27ma and 29ma)
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1 pair) JAN-CHS-10Y=VT-25 SYLVANIA NOS 1940's in white boxes - same construction
1 tube) 27ma Gm=2000 slightly faded base printing
1 tube) 29ma Gm=2200 some scratches on base - very slightly taller glass - on right
Good Ma current range 20-30ma
Good Gm range 1600-2000
Vplate=300V
Vgrid=-15V
See more: vacuum tube
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