(!) 47 RCA Radiotron Balloon used/good 1930's (23.4ma)
$ 29.99
1 tube) 47 RCA Radiotron Balloon used/good 1930's
23.4ma
Gm=1900
Vplate=250V
Vscreen=250V
Vgrid=-15V
NOS Iplate=27ma
NOS Gm=2350
See more: vacuum tube
Share:
 47 RCA Radiotron Balloon used/good 1930's (23.4ma)&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_bfa4160b-750a-49f8-89e3-fb8c5b9218f4.jpg?v=1571439287){kind=link}
 47 RCA Radiotron Balloon used/good 1930's (23.4ma) "Pin It")