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307A=VT-225 Ken Rad NOS/75% coated glass 1940's
34ma 75%
Gm=3100 75%
Good Ma range 45=50ma
Gm 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)
- Peter Millett headphone amp
- Eddie Current Balancing Act
Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
US$40
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