Haha, I got a decent batch of the little tiny IN-2(?) with the side nipple on them and of course some were broken. I put those aside for similar experimentation, thinking I could try glassblowing to attach a new filler neck on them, evacuate, bake out, then re-gas. At some point. After I get room cleared out and build the high vacuum cart I plan to build for making laser tubes, neon, and other craziness. And time...
On Tue, Aug 20, 2024 at 12:26 PM gregebert <[email protected]> wrote: > The early Burroughs tubes, notably the 5031, are not very reliable. The > few that I have that do work, have a purely orange glow whereas the later > production tubes (like the stellar 5092) have a slight pinkish/purple tint > in some regions due to a better gas mixture (probably a Penning mix, or > similar), and more-importantly, the addition of mercury to prolong the > electrode life. I have several dead or dying 5031's that cant be > resurrected with high voltage or current. The only reason I kept them is > that someday I will be stubborn (or stupid) enough to attempt regassing > them as an experiment. > > I suspect the BD-252 is an earlier production version; note the rounded > top and the circular anode in the photos are similar to the 5031's > construction. Without seeing it illuminated, I wouldn't risk 200 USD unless > I was an insatiable collector with money to burn. > > On Tuesday, August 20, 2024 at 10:10:10 AM UTC-7 Jon D. wrote: > >> Here's a link to a BD-252 listing with somewhat of a description: >> >> BURROUGHS BD-252 .75 INCH NEON NIXIE TUBE, 0 1 2 A B >> >> https://www.worthpoint.com/worthopedia/burroughs-bd-252-75-inch-neon-nixie-tube-0-1-2-a >> >> On Tuesday, August 20, 2024 at 10:42:17 AM UTC-6 Mac Doktor wrote: >> >>> I checked all of the usual places but I can't find any data on this tube: >>> >>> https://www.ebay.com/itm/296641174665 >>> >>> >>> The seller added three more photos after I contacted him. It looks >>> symbolic but I can't quite make the cathodes out. >>> >>> >>> Terry Bowman, KA4HJH >>> "The Mac Doctor" >>> >>> https://www.astarcloseup.com >>> >>> "If only you could see what I've seen with your eyes."—Roy Batty, *Blade >>> Runner* >>> >>> -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/a7c087e8-1291-4b71-9347-ab39449057dfn%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/a7c087e8-1291-4b71-9347-ab39449057dfn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAJD4P-jXdQ6jMCsOc6bBPmnt0kpgGaJKhMhkXKwORmfSxaGEdA%40mail.gmail.com.
