56 GE used/good 1940's (4.2ma)
$ 7.99
56 GE used/good 1940's
4.2ma
Gm=1100
Tested on Amplitrex:
Vplate=250V
Vgrid=-13.5V
Iplate good range = 4.5-5.5ma
Gm=1400
(Vfilament = 2.5 volts)See more: vacuum tube
Share:
&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_76b6e600-07c7-4308-997a-320678f5b8ca.jpg?v=1571439095){kind=link}
 "Pin It")