6N7 Sylvania NOS 1940's (2.3/2.3ma)
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6N7 Sylvania NOS 1940's
2.3ma Gm=1300
2.3ma Gm=1300
(6N7=6A6=ECC31, 6N7=Type 53 with different filament voltage, also see 5694)
(the best sounding 6N7 type ever made is the ECC31 Mullard)
- Sun Audio SV-6V6SE 2008
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