(!!!) (Best Value Pair) 6B4G Sylvania NOS 1952 same build (76ma and 80ma)
Was $119.99
SAVE 17%
$99.99
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1 matched pair) 6B4G Sylvania NOS 1952 same build 1 tube) 76ma and Gm=5500 (branded RCA) taller bottle in white box 1 tube) 80ma and Gm=5300 (branded JAN-CHS-6B4G Sylvania) slightly tilted glass in original military style box Good current range 70-90ma (6B4G=6.3V filament)(6B4G is electrically equivalent to 6A3, but 6A3 has UX-4 pin base and 6B4G has 8 pin octal base)(The best sounding 6B4G are 1940's-1950's: Ken Rad, Tungsol, Sylvania, Raytheon)
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Price History
$150
$99.99
(-$50.01)
$99.99
$119.99
(+$20)
$119.99
$99.99
(-$20)