13FM7=15FM7 US Brands NOS (8 in stock)
By Tube World
$ 3.49
13FM7=15FM7 NOS
3) GE branded Dumont
1) GE
See more: vacuum tube
Share:
&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/13FM7.jpg?v=1571438965){kind=link}
 "Pin It")
By Tube World
13FM7=15FM7 NOS
3) GE branded Dumont
1) GE