(!!!) (Recommended Single) CV491=12AU7=ECC82 Brimar England NOS ribbed plates 1974 (9.4/9.2ma)

1 low noise tube) CV491=12AU7=ECC82 Brimar England NOS ribbed plates 1974

9.4ma Gm=1900

9.2ma Gm=1800

CV491=low noise 12AU7

- rich and smooth 12AU7

Good Ma range 8-10ma

Good Gm range 1800-2200