6EM7 Tungsol NOS 1960's 1.8ma Gm=2200 64ma Gm=8450 Tested on Amplitrex Good Ma Triode = 1.4ma+ Gm=1500 Good Ma Pentode = 35-40ma Gm=6000-7000 Joule Electra LA-100 MK3Modwright power supplyWright Sound phono wpp-200cWright Sound WLA12A preampKenji Mizushima KensoMusic Reference 6EM7 ampWelbourne Apollo mono amps (KR/VAIC VV52B or 300B output tubes)
