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(slightly microphonic single) 12BH7A Brimar England black ribbed plates NOS 1950's rebranded GE in 1967 (SW) (12.4/14.6ma)
(slightly microphonic single) 12BH7A Brimar England black ribbed plates NOS 1950's rebranded GE in 1967 (SW) (12.4/14.6ma)
By Tube World
$ 49.99
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1 slightly microphonic tube) 12BH7A Brimar England black ribbed plates NOS 1950's
rebranded GE in 1967 (SW)
12.4ma Gm=3400
14.6ma Gm=3700
High Ma and Gm which could contribute to the microphoncs
(best sounding are RCA, Brimar, Tungsol, GE, Sylvania, Super Radiotron Australia)
(nice in McIntosh and driver tube in Quicksilver 6C33 triode amps)
- VTL MB450
- Blackstar HT5 2009
- Valvet L1 preamp
See more: vacuum tube
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 12BH7A Brimar England black ribbed plates NOS 1950's rebranded GE in 1967 (SW) (12.4/14.6ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_8f3696d9-e345-4ee0-a47c-77bcea678247.jpg?v=1600187256){kind=link}
 12BH7A Brimar England black ribbed plates NOS 1950's rebranded GE in 1967 (SW) (12.4/14.6ma) "Pin It")