(!!!) (Best Sylvania Pair) 6B4G Sylvania NOS 1940's same build (92ma and 95ma)
$ 99.99
1 Matched Pair) 6B4G Sylvania NOS 1940's plates connected - same build - springs hold up filament wires
1 tube) 92ma Gm=6100 branded Philco
Test Data: Vplate=225V, Vgrid=-30V
(NOS Ma range 80-100ma)
(NOS Gm = 5200)
Technical Information
(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)
See more: vacuum tube
Share:
 (Best Sylvania Pair) 6B4G Sylvania NOS 1940's same build (92ma and 95ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_e8254e96-70ed-4d59-b950-3712f3d94df8.jpg?v=1692682889){kind=link}
 (Best Sylvania Pair) 6B4G Sylvania NOS 1940's same build (92ma and 95ma) "Pin It")