1 pair) 6005W Sylvania JAN black plate clear glass NOS 1971

1 tube) 53.0ma Gm=4420
1 tube) 54.6ma Gm=4550 

The 6005 = premium computer-rated 6AQ5

Matched on Amplitrex

Good Ma range 35-45ma

Good Gm range 4000-4500

Recommended for

– AudioTropic Mœbius linestage preamp
– Groove Tubes ViPre MicPreamp
– Fender Musicmaster Bass Amp circa 1970-1971
– Epiphone EA 50T (modified) 1960