(!!) (Recommended Single) JAN-12AX7WA Sylvania NOS 1974 (Gm=2100/2300 and 1.7/1.9ma)

1 low noise tube) JAN-12AX7WA Sylvania NOS 1974 

1.7ma Gm=2100

1.9ma Gm=2300

Good NOS Gm = 1600

Good NOS Ma = 1.0-1.2ma+

(open extended highs, neutral, clear, nice headroom)

- Rogue Cronos Magnum

- Guitar amps