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307A Ken Rad NOS coated glass 1940's rebranded

307A Ken Rad NOS coated glass 1940's rebranded "CEI" (63ma)

$ 55.99

1 tube) 307A Ken Rad NOS coated glass 1940's rebranded "CEI" in white box (63ma)

Good Ma = 50ma

 

(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

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