(display tube) UV-99 Unknown maker - does not work
$ 5.99
(display tube) UV-99 Unknown maker - does not work 1920's
(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 Unknown maker - does not work&Category=vacuum tube&ImageURL=http://tubeworldexpress.com/cdn/shop/products/1_c028b704-b2b6-4589-bb21-13de5b47894f.jpg?v=1571439212){kind=link}
 UV-99 Unknown maker - does not work "Pin It")