(!) 47 Raytheon engraved base box plate used/good 1930's (25.2ma Gm=1940)
By Tube World
$ 13.99
47 Raytheon box plate used/good 1930's in white box
25.2ma
Gm=1940
NOS Ma range 26-31ma
NOS Gm range 2300-2500
(2.5 watts)
(2.5V filament)
See more: vacuum tube
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 47 Raytheon engraved base box plate used/good 1930's (25.2ma Gm=1940)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_0444ba95-383c-44c0-89eb-5de69350541c.jpg?v=1699676389){kind=link}
 47 Raytheon engraved base box plate used/good 1930's (25.2ma Gm=1940) "Pin It")