(GOOD VALUE) ECC801S=12AT7 Telefunken triple mica used/65% 1967 (5.6ma/6.0ma)

1 low noise tube) ECC801S=12AT7 Telefunken triple mica used/65 1967 copper grid posts in Telefunken box - reprinted 

1 section) 5.6ma Gm=3300

1 section) 6.0ma Gm=3700

(transparent and open with very good speed and high end extension, accurate bass  but not overemphasized, extremely low noise, very neutral, accurate,  balanced, un-colored sound, work well in DACS and linestages, 10,000+ hour lifespan)

- Audio Synergy preamp (2013) - Doshi Alaap Mk 2 preamp - Manley - VTL  - Earmax Silver Edition - Lector CDP 0.6T - APEX 460 sub for 12AX7 - WAVAC 805 SE amp - Kora integrated amp - TUBE MICS - MAC MA2275 - VTL S-400 amp - VTL Deluxe 300 amps