(!) E81L=6686 Philips SQ made By Valvo, Hamburg, Germany NOS 1971 (16.6 and 17.4ma)
$ 54.99
1 pair) E81L=6686 Philips SQ made By Valvo, Hamburg, Germany NOS 1971
1 tube) 16.6ma Gm=10,400
1 tube) 17.4ma Gm=10,400
Good mA range 15-18ma
Good Gm 10,000+
(10,000 hour Power Pentode)
See more: vacuum tube
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 E81L=6686 Philips SQ made By Valvo, Hamburg, Germany NOS 1971 (16.6 and 17.4ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_3acc5872-de8c-43c1-8808-b142375fb924.jpg?v=1693083759){kind=link}
 E81L=6686 Philips SQ made By Valvo, Hamburg, Germany NOS 1971 (16.6 and 17.4ma) "Pin It")