12SN7GTA GE Honeywell gray plates used/good 1960”s (6.0/6.8ma)

1 low noise tube) 12SN7GTA GE Honeywell gray plates used/good 1960”s

6.0ma Gm=2300

6.8ma Gm=2400

– Mapletree
– McAlister Audio MA-10
– Tom Tutay preamp