(!!) (Best Pair) 6S4A RCA black plate "U" getter NOS 1959 (21ma and 22ma)
$ 19.99
1 pair) 6S4A RCA black plate "U" getter NOS 1959 (LO)
1 tube) 21ma Gm=4200
1 tube) 22ma Gm=4500
Matched on Amplitrex
Vplate=250V
Vgrid=-8V
Good Ma range 20-25ma
Good Gm range 4000-4500
(the 6S4A features high plate current at relatively low plate voltages and is capable
of withstanding high pulse voltages)(Vfil=6.3V @ 600ma)
MAX Ratings: Vplate=550V, Iplate=30ma, Pout=8.5 watts
Typical Operation:
Vplate=250V, Vgrid=-8V, Iplate=24ma, Mu=16.5, Gm=4500, Rplate=3700 ohms
- Woo Audio GES Electrostatic headphone amp
See more: vacuum tube
Share:
 (Best Pair) 6S4A RCA black plate "U" getter NOS 1959 (21ma and 22ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_1c322eda-722a-48ba-b954-1b4cd6414918.jpg?v=1733559182){kind=link}
 (Best Pair) 6S4A RCA black plate "U" getter NOS 1959 (21ma and 22ma) "Pin It")