(display tube) UV-99 Radiotron brass base 1920's tarnished base - lights up
$ 9.99
UV-99 Radiotron brass base 1920's - lights up but does not have emission
tarnished brass base
(UV-99 and UX-99 have a 3.3V @ .063ma Filament, UV base has smaller size pins)
See more: vacuum tube
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 UV-99 Radiotron brass base 1920's tarnished base - lights up&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/files/1_aa62375d-6f81-4407-9c93-33c5e94d3a8d.jpg?v=1696541495){kind=link}
 UV-99 Radiotron brass base 1920's tarnished base - lights up "Pin It")