(!!!!) (Best Overall Pair) 12AX7A RCA gray ribbed plates NOS 1974 same date codes (best tone) (1.3/1.2ma and 1.3/1.1ma) (Fender, McIntosh, Rogue Audio

1 low noise pair) 12AX7A RCA gray ribbed plates NOS 1974 (FA) 1-3% matched

1 tube) Gm=1700/1700 (1.3/1.2ma)

1 tube) Gm=1700/1700 (1.3/1.1ma)

NOS Gm = 1500-1600+

NOS mA = 1.0mA+

Recommended for:

• Matchless
• Rogue Audio
• Vincent CD-S6 CD Player
• Dumble Overdrive Special clone amp

– Fender Twin Reverb 1964, 1966, 1990

– compressors

– Two-Rock Custom Reverb Signature V1
– UESUGI TAE-4 phono 2008

– Fender Princeton Reverb
– Fender Super 6 Reverb 1970”s
– Fender Champ 1972
– VOX AC15
– Fender ”64 Vibroverb
– SUPRO model # 1616T
– Conrad Johnson MV60SE
– Shanling CD-S100SE HDCD player
– Universal 175
– Teletronix LA-2A Compressor/Limiter
– Behringer T1954 Ultrafex
– Conrad Johnson MV60 2002
– McIntosh C8 phono