(!!!!) (Single) 6DJ8 Philips Holland low hours/like new 1967 (13.6/14.4ma) (sonically the same as Bugle Boy)1 low noise tube) 6DJ8 Philips Holland low hours like new 1967 faded printing 1 section) 13. 6ma Gm=12,500 1 section) 14. 4ma Gm=12,900 Good Ma range 12 15ma Good Gm range 11000 13000 Recommended for Manley Chinook Scott Nixon DAC Rode K2 mic Sunfire Classic Vacuum Tube Control Center Woo Audio WA3+ Pathos Classic One MK III preamp Audio Horizons phono