(!!) (Best Value Pair) 6189W Philips ECG NOS by Sylvania 1983-1987 (8/10ma and 8.6/10ma)

1 low noise pair) 6189W Philips ECG NOS by Sylvania 1983-1987

1 tube) 8.0/10ma Gm=2000/2300

1 tube) 8.6/10ma Gm=2100/2300

Matched on Amplitrex

Good Ma range 8-10ma

Good Gm range 1800-2200

- 6189 W is sub for a 12AU7 or 5814