(!!!) (Best Pair) 12AZ7A Toshiba branded Raytheon Japan gray plates NOS 1960”s (11.3/12.3ma and 11.4/11.8ma)

1 low noise tube) 12AZ7A Raytheon Japan gray plates NOS

1 tube) 11.3/12.3ma Gm=5700/6300

1 tube) 11.4/11.8ma Gm=5700/6000

– McIntosh MC275