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307A=VT-225 Raytheon NOS coated glass 1940's (85ma)

307A=VT-225 Raytheon NOS coated glass 1940's (85ma)

$ 59.99

1 tube)  307A=VT-225 Raytheon NOS coated glass 1940's

85ma

Gm=4900

 

Good Ma range 45-50ma

Good Gm = 4000

 

(307A=VT-225 Sylvania / Ken-Rad, Identical to Western Electric, 6 Watt Pentode)
(The 307A is a 306A with a quick heating filament, 5.5V @ 1A filament,
5-pin bayonet socket with top cap)

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