(!!) (BEST PAIR #1) JAN-5725W=6AS6 Philips by Sylvania black plate NOS 1982 (6.5ma and 6.2ma)

1 matched pair) JAN-5725W=6AS6 Philips by Sylvania black plate NOS 1982

1 tube) 6.5ma Gm=3200

1 tube) 6.2ma Gm=3000

NOS mA range 4.2-5.2mA+

NOS Gm 2500-3200+