12DW7 Sylvania rebranded RCA tests like new 1961 era (1.0ma/11.2ma)

12DW7=7247 Sylvania rebranded RCA tests like new 1961 era in white box

12AX7 Section = 1.0ma Gm=1600

12AU7 Section = 11.2ma Gm=2400

Tested on Amplitrex

12AX7 Section Good = 1-1.2ma Gm=1600-1800

12AU7 Section Good = 8-10ma Gm=1800-2200