(!!!!!) (Best Overall Pair) ECC801S=12AT7 Telefunken Germany <> bottom NOS triple mica 1965 same date codes (9.8/10.2mA and 10.0/10.7mA) (1-3% matched)
1 low noise pair) ECC801S=12AT7 Telefunken Germany <> bottom NOS triple mica
(U7105306=1965) same date codes - very good printing
1 tube) 9.8/10.2ma Gm=5200/5400
1 tube) 10/10.7ma Gm=5600/5700
Matched on Amplitrex
Good NOS Ma range 8-10ma
Good NOS Gm range 4500-5500
(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


