(!!) (Best Value Pair) 30 Sylvania NOS branded DELCO NOS 1947 (3.3ma and 2.8ma)
By Tube World
$ 29.99
1 pair) 30 Sylvania NOS branded DELCO NOS 1947
1 tube) 3.3ma Gm=800 very small hairline crack in base
1 tube) 2.8ma Gm=800
Matched on Amplitrex
NOS Ma = 3.1ma
NOS Gm = 800-900
See more: vacuum tube
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 (Best Value Pair) 30 Sylvania NOS branded DELCO NOS 1947 (3.3ma and 2.8ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_5f81641b-3ee0-4f9d-9538-034f83501180.jpg?v=1571439147){kind=link}
 (Best Value Pair) 30 Sylvania NOS branded DELCO NOS 1947 (3.3ma and 2.8ma) "Pin It")