(!!) 13EM7 RCA black base black plates NOS 1968 (2.0ma/28ma)
$ 6.99
13EM7 RCA black base black plates NOS 1968
2.0ma Gm=1600
28ma Gm=5100
Tested on Amplitrex
Good Ma triode #1 = 1.2-1.4ma
Good Gm triode #1 =1400-1600
Good Ma triode #2 = 30-40ma
Good Gm triode #2 = 5500-7000
- Modwright
See more: vacuum tube
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 13EM7 RCA black base black plates NOS 1968 (2.0ma/28ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_9a4fa9e1-b8ca-49d7-83e5-ad43028c5b0c.jpg?v=1687904752){kind=link}
 13EM7 RCA black base black plates NOS 1968 (2.0ma/28ma) "Pin It")