6CG7 Sylvania Emerson used/good chrome electrostatic shield between plates “”U”” getter 1957 (6.2/6.8ma)

6CG7 Sylvania Emerson used/good chrome electrostatic shield between plates “”U”” getter 1957

1 section) 6.2ma Gm=2100

1 section) 6.8ma Gm=2000

Tested on Amplitrex

Good used mA range 6-8ma

Good used Gm range 2000-2200

for:

– Stax SRM-T1S, SRM 007T, SRA-35
– Stax SRM-006tII
– Marantz 8B
– Marantz 2
– ARC D79, D79A
– Moscode 401HR amp
– Conrad Johnson Premier 8A Monoblocks
– Conrad Johnson PV-9A preamp
– Conrad Johnson Premier 11A
– Art Audio Vinyl 1 phono stage regulator tube
– Gill Audio Elise DAC
– AVA T8+ preamp
– Audio Research D-250 MKII Servo
– Leben