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(!!!!) (Holland single 1958) ECC83=12AX7 Triotron Holland "long plates" with "D" getter halo like new 1957 (1.1/1.2ma and Gm=1700/1700)
(!!!!) (Holland single 1958) ECC83=12AX7 Triotron Holland "long plates" with "D" getter halo like new 1957 (1.1/1.2ma and Gm=1700/1700)
By Tube World
$ 299.99
1 low noise tube) ECC83=12AX7 Triotron Holland "long plates" with "D" getter halo like new (mC5-delta7A) = 1957 - copper grid posts - in white box
1 section) Gm=1700 (1.1ma)
1 section) Gm=1700 (1.2ma)
NOS Gm = 1500-1600+
NOS mA = 1ma+
- best sounding 12AX7
- lively midrange
See more: vacuum tube
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 (Holland single 1958) ECC83=12AX7 Triotron Holland "long plates" with "D" getter halo like new 1957 (1.1/1.2ma and Gm=1700/1700)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_94e4f65c-eb16-4460-8c0b-e115e65a6f59.jpg?v=1701902415){kind=link}
 (Holland single 1958) ECC83=12AX7 Triotron Holland "long plates" with "D" getter halo like new 1957 (1.1/1.2ma and Gm=1700/1700) "Pin It")