(!!!!) (Best Pair #2) JHY-6AK5 Hytron black plate NOS 1952 (8.2ma and 8.5ma) (close Gm) 1-3% matched

1 pair) JHY-6AK5 Hytron black plate NOS 1952  1 tube) 8.2ma Gm=4600 1 tube) 8.5ma Gm=4700 NOS Ma = 6.5-7.5ma NOS Gm = 4000-5000    Recommended for: Little Dot MKII Headphone ampLittle Dot MKIII Headphone ampLittle Dot MKIV SE headphone ampLittle Dot Hybrid I+Yaqin CD 2 Yaqin MS34D 2009Yaqin MS20L Integrated ampCAD Trion 8000 Multi-Pattern Studio Tube Microphone (sub for 6J1P)Hifiman EF2 USB Headphone AmplifierDarkvoice 332Beez Neez Mahalia MicrophoneYamamoto CA-04 preampTelefunken CU-29 Copperhead MicMaverick Audio A1 ampLAMM ML-2 amp 1999