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(!!!!) (Best Pair #1) 12AU7A RCA clear top NOS and like new 1960's (9.2/8.6ma and 10/8.6ma) (Close Gm matching) (Best audio grade 12AU7)
(!!!!) (Best Pair #1) 12AU7A RCA clear top NOS and like new 1960's (9.2/8.6ma and 10/8.6ma) (Close Gm matching) (Best audio grade 12AU7)
$ 118.88
1 low noise tube) 12AU7A RCA clear top NOS and like new 1960's
1 tube) 9.2/8.6ma Gm=2100/1900 (1963) RCA like new - on right
1 tube) 10/8.6ma Gm=2200/2000 (1960's) RCA branded HICKOK
- Best American Made 12AU7
- Balanced and smooth, good bass, musical
- good printing
Tested on Amplitrex AT1000
Good Ma range 8-10ma
Good Gm range 1800-2200
See more: vacuum tube
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 (Best Pair #1) 12AU7A RCA clear top NOS and like new 1960's (9.2/8.6ma and 10/8.6ma) (Close Gm matching) (Best audio grade 12AU7)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/7_1_ea49de37-134a-447f-9637-5540e0f2074a.jpg?v=1782190216){kind=link}
 (Best Pair #1) 12AU7A RCA clear top NOS and like new 1960's (9.2/8.6ma and 10/8.6ma) (Close Gm matching) (Best audio grade 12AU7) "Pin It")