1 low noise tube) 12AU7=ECC82 Daystrom Mullard UK ribbed plates like new 1963

9.0ma Gm=1900

10.2ma Gm=2100

Tested on Amplitrex

Good Ma range 8-10ma

Good Gm range 1800-2200

great midrange and good bass

Low Noise and not microphonic

Recommended for

– Concert Fidelity CF-080LS Hybrid Line Stage Preamplifier
– Ampeg SVP-PRO Bass Preamp
– Velleman K4000 kit
– Audio Note CD2
– ROTH AUDIO MC4 MUSIC COCOON 2009
– Eastern Electric Minimax
– Hovland