(!!!!!) (Best Mullard Pair) 12AX7=ECC83 Mullard UK ribbed plates NOS 1970-1974 (1.2/1.3ma and 1.2/1.1ma) (same Gm)

1 low noise tube) 12AX7 Mullard UK NOS ribbed plates (163 series) 1 tube) Gm=1800/1700 (1.2/1.3ma) (1974) very good printing 1 tube) Gm=1800/1700 (1.2/1.1ma) (1970)  good printing, but faded NOS Gm range 1600+ NOS mA = 1ma Recommended for - Victoria - Bogner Ecstasy - Bad Cat - Sur SL-68 (hand wired) - Fender - Two Rock - Top Hat King Royale - Soldano SLO-100 (Mark Knopfler, Eric Clapton) - Marshall 1959HW Plexi - Marshall JVM-210H 2007-2008 - Diezel Herbert head - Gibson GA-6 1957 - Trace Elliot C30 - Mesa Boogie Triaxis 2 preamp- Mesa Boogie Mark 2C+ 1984- Goodsell Super 17 M.K. 2 head- Jolida CD player- Landgraff Custom 50W- Lexicon Signature 284