(!!!!) (Best Overall Single) GB-5963=12AU7 Sylvania Gold Brand Gold Pins NOS 1960's (11.2/13.6ma)

1 low noise tube) GB-5963=12AU7 Sylvania Gold Brand Gold Pins NOS 1960's

1 section) 11.2ma Gm=2500

1 section) 13.6ma Gm=2600

(5963=computer rated 12AU7)

- Bottlehead Forplay III

- CAT SL-1L

- Wavelength Sine