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(!!!) (Recommended Pair) 6EM7=6EA7 Sylvania coin-base NOS 1970's (1.5ma/73ma and 1.8ma/65ma)
(!!!) (Recommended Pair) 6EM7=6EA7 Sylvania coin-base NOS 1970's (1.5ma/73ma and 1.8ma/65ma)
$ 54.99
1 pair) 6EM7=6EA7 Sylvania coin-base NOS 1970's same build
1 tube) 1.5ma Gm=1500 (triode) 73ma Gm=8800 (pentode) Sylvania
1 tube) 1.8ma Gm=1800 (triode) 65ma Gm=8900 (pentode) Sylvania/Zenith
Tested on Amplitrex
Good Ma Triode = 1.4ma Gm=1500
Good Ma Pentode = 35-40ma Gm=6500
for:
Joule Electra LA-100 MK3
Modwright power supply
Wright Sound phono wpp-200c
Wright Sound WLA12A preamp
Kenji Mizushima Kenso
Music Reference 6EM7 amp
Welbourne Apollo mono amps (KR/VAIC VV52B or 300B output tubes)
See more: vacuum tube
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 (Recommended Pair) 6EM7=6EA7 Sylvania coin-base NOS 1970's (1.5ma/73ma and 1.8ma/65ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_784045e8-91db-4fb7-a9e5-070d65c7ce37.jpg?v=1721673243){kind=link}
 (Recommended Pair) 6EM7=6EA7 Sylvania coin-base NOS 1970's (1.5ma/73ma and 1.8ma/65ma) "Pin It")