(!!!) (Recommended Pair) 30 RCA Cunningham engraved base 1930's low hours/test like new (3.3ma and 3.4ma)
$34.99
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1 pair) 30 RCA Cunningham engraved base 1930's low hours/test like new1 tube) 3.3ma Gm=800 1 tube) 3.4ma Gm=900 Matched on Amplitrex NOS Ma = 3.1ma NOS Gm = 800-900
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