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(!!!) (Best Pair) 713A Western Electric by Tungsol NOS 1942-1943 (7.1ma and 7.0ma) (713A=717A with black base)
(!!!) (Best Pair) 713A Western Electric by Tungsol NOS 1942-1943 (7.1ma and 7.0ma) (713A=717A with black base)
By Tube World
$ 59.99
1 pair) 713A Western Electric by Tungsol NOS 1942-1943
1 tube) 7.0ma Gm=4000 (CTL-713A)
1 tube) 7.1ma Gm=3700 (713A)
Tested on Amplitrex
Good mA range 5.5-8mA
Good Gm range 3000-4000
(Pentode, 713A=717A with black bakelite base)
most made by Tungsol branded Tungsol or Western Electric by Tungsol
- Yamamoto AO8 amp
See more: vacuum tube
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 (Best Pair) 713A Western Electric by Tungsol NOS 1942-1943 (7.1ma and 7.0ma) (713A=717A with black base)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_153ab210-cf56-4e79-b21f-3064e9850a12.jpg?v=1705436569){kind=link}
 (Best Pair) 713A Western Electric by Tungsol NOS 1942-1943 (7.1ma and 7.0ma) (713A=717A with black base) "Pin It")