6CG7 GE used/good gray electrostatic center shield between plates “”O”” getter halo 1960 (6.2/6.8ma)

1 low noise tube) GE used/good gray electrostatic center shield between plates “”O”” getter halo 1960

1 section) 6.2ma Gm=2300

1 section) 6.8ma Gm=2400

Tested on Amplitrex

Good Ma range 7-9ma

Good Gm range 2400-2600

(RCA made the best sounding 6FQ7 and 6CG7)

– 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