(!!!!) (Recommended Pair) 27 Philco by Sylvania NOS 1940's (5.7ma and 5.5ma)
By Tube World
$ 38.99
1 pair) 27 Philco by Sylvania NOS 1940's
1 tube) 5.7ma Gm=1000
1 tube) 5.5ma Gm=1000
NOS mA 5.2ma+
NOS Gm 900+
See more: vacuum tube
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 (Recommended Pair) 27 Philco by Sylvania NOS 1940's (5.7ma and 5.5ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_ef322285-9c4d-41bb-9d6e-cafe55091a20.jpg?v=1645306000){kind=link}
 (Recommended Pair) 27 Philco by Sylvania NOS 1940's (5.7ma and 5.5ma) "Pin It")