(!!!) (Best Single #2) 6688=E180F Amperex PQ USA NOS 1965 (15.2ma)
By Tube World
$ 27.99
6688=E180F Amperex PQ USA NOS made in 1965 printed in 1966
15.2ma
Gm=16,900
(10,000 hour 9-pin frame grid broadband Pentode, variant is 7737)
- Supratek Chenin, Cortese preamp
- Yamamoto 06-3 2010
See more: vacuum tube
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 (Best Single #2) 6688=E180F Amperex PQ USA NOS 1965 (15.2ma) "Pin It")