6AS7G Russian branded National NOS 1990”s

51ma Gm=4200

77ma Gm=5000

Amplitrex Test Data

Good Ma range 70-100ma

Good Gm range 4500-6000

Recommended for

– Bottlehead Crack
– Woo Audio WA2, WA3, WA22
– Le Figaro 336c headphone amp
– Little Dot MK IV
– Little Dot Mk9
– Kora Cosmos
– Antique Sound Labs Audiotailor Jade 2009
– Audio Research VTM 200
– Croft Apparition Elite OTL amp (UK)
– Tram2 – DHT OTL Linestage Kit – Level 3 Remote Controllable
– Wyetech Onyx amp

– Tram