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(!!!) (#1 10 Sylvania Pair) 10=VT-25 Sylvania brown base NOS 1940's (25.4ma and 25.8ma)

(!!!) (#1 10 Sylvania Pair) 10=VT-25 Sylvania brown base NOS 1940's (25.4ma and 25.8ma)

$ 199.99

1 matched pair) 10=VT-25 Sylvania NOS 1940's in white boxes

1 tube) 25.4ma Gm=1900

1 tube) 25.8ma Gm=1900

 

Good curent range 20-30ma

Vplate=300V Vgrid=-15V

 

 

General Information:

(Filament=7V @ 1.2A, Vplate=220V, Vgrid=-7V, Iplate=25ma, Mu=6, Rp=6Kohms)

(The VT-25 is built exactly the same as a VT-52, but the plate and grid are spaced  differently yielding different Mu factors and plate resistance)

 

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