[neonixie-l] Re: NE70V neon tubes
The interesting thing about the eBay listing is that it claims they are "Fully Tested". I asked the seller how that could be done without specifications. I haven't heard back yet. :) More picture from other angles would have been nice. I guess I sometimes buy a pig in a poke. On Nov 4, 10:19 pm, David Forbes wrote: > Since only two wires are seen in the glass header below the black disc, > it's safe to assume that only two pins are used. > > It's too bad that the seller took all four pictures from the same side > of the tubes. I'm guessing that there's a smaller disc (or ring or > something interesting) on the other side of the big disc, from which the > plasma emanates. > > -- > David Forbes, Tucson AZhttp://www.cathodecorner.com/ -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Re: NE70V neon tubes
On 11/4/10 6:24 PM, Larry wrote: Those are the ones. The word NEON is printed on the top of the tube. I'm hoping they're just large neon bulbs and that only two pins are used. I guess I'll find out when they arrive. Larry Larry, Since only two wires are seen in the glass header below the black disc, it's safe to assume that only two pins are used. It's too bad that the seller took all four pictures from the same side of the tubes. I'm guessing that there's a smaller disc (or ring or something interesting) on the other side of the big disc, from which the plasma emanates. -- David Forbes, Tucson AZ http://www.cathodecorner.com/ -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
[neonixie-l] Re: NE70V neon tubes
Thanks for the info. Now all I have to do is find my box of wire wound resistors. I haven't seen them since I moved here 20 years ago. Who knows, there might even be a wire wound rheostat hiding somewhere in my dungeon. And yes, I remember my guzintas. Larry On Nov 4, 10:04 pm, threeneurons wrote: > > When you get yours make a simple burn-in jig, using the household > 110VAC and a power resistor. I'd start with an assumed sustained > voltage of 70V (just a guess), and peak current of 20mA. 165V (peak > value of 120Vrms) knock off 70V, gives you 95V. 95 goes-n-ta (see > Beverly Hillbillys - Jethro & Advanced Math) .02Amps, 4750 times. So > that's ~4.7K, and 95 times .020 (20mA) is ~2Wpeak; ~1Wrms. A 5W power > resistor should do fine. See how much of the electrode surface lights > up, and see if it grows after a few minutes. If not, make the > resistance smaller. Cut it in half. Keep an eye on it. Don't do a 'Dr > Conrad Murray' (see Michael Jackson), and ignore your patient. Results > may end up similar. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
[neonixie-l] Re: NE70V neon tubes
> Those are the ones. ... I'm hoping they're just large neon bulbs and that > only two pins are used. http://cgi.ebay.com/ws/eBayISAPI.dll?VISuperSize&item=160498913376 That they are ! I actually had a pair of those in my hand, from the same source. The eBay seller is brokering them for a guy, who doesn't have an eBay account. Westdave knows both of them, and got a pair from the guy. Dave also had me test the pair that he had. They are most likely cathode poisoned. But probably not in a permanent way. Just run them for a while and it should clear up. I used a small portable test jig to run them. It can't deliver more than 15mA at 180V, so only a small portion lit up. When you get yours make a simple burn-in jig, using the household 110VAC and a power resistor. I'd start with an assumed sustained voltage of 70V (just a guess), and peak current of 20mA. 165V (peak value of 120Vrms) knock off 70V, gives you 95V. 95 goes-n-ta (see Beverly Hillbillys - Jethro & Advanced Math) .02Amps, 4750 times. So that's ~4.7K, and 95 times .020 (20mA) is ~2Wpeak; ~1Wrms. A 5W power resistor should do fine. See how much of the electrode surface lights up, and see if it grows after a few minutes. If not, make the resistance smaller. Cut it in half. Keep an eye on it. Don't do a 'Dr Conrad Murray' (see Michael Jackson), and ignore your patient. Results may end up similar. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
[neonixie-l] Re: Keeping your clock accurate
This is just way to much of a coincidence; I'm in Seattle to! I'm thinking to go with David Forbes idea. I hadn't realized that the crystals were accurately inaccurate. I'm thinking to have a BCD encoding dip switch that sets the number of forward or backwards seconds per day. Thank you all so much for your help and advice. Steve On Nov 3, 9:54 am, micha...@aol.com wrote: > Adam, > > We are both in the same area (physically). Maybe collab on the WWVB might > be in hand. > I did suggest it, because he said Arduino, and I have found plenty of > online code specific to WWVB and Arduino. But, like you, still a work in > progress as it sits powerless in front of me. > > Also, I did get the bigger antenna. 6" long. Also hungry for power to > be applied at some end. > I do agree on Seattle being bad for reception. In fact, I just got > Citizen to take back my $800 watch because it would not get the time (Citizen > > ATom). Many times back to the shop and they even sent me a damn blue antenna > and told me I must sit the antenna between East and the watch. Uhhhg. > Not spending that kind of money for a watch that needs extra items / gadgets > / antenna / and magic to keep time. > > Projects, projects. What's the part number to buy some more time in the > day? > > Michail > > In a message dated 11/3/2010 8:49:34 A.M. Pacific Daylight Time, > > a...@jacobs.us writes: > > -Adam -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
[neonixie-l] Re: NE70V neon tubes
Those are the ones. The word NEON is printed on the top of the tube. I'm hoping they're just large neon bulbs and that only two pins are used. I guess I'll find out when they arrive. Larry On Nov 4, 6:14 pm, jb-electronics wrote: > Hi Larry, > > talking about this auction? Ebay # 160498913376 > > I saw them, too, but sadly I do not know what they are, either. The > nomenclature NE suggests that they are some kind of neon bulb. > > Jens > > Am 05.11.2010 00:02, schrieb Larry: > > > I've just purchased a pair of Amperite NE70V neon tubes. The seller > > has no information on them and I've found nothing on the web. They > > appear to have an octal base and a large circular plate in the > > center. Does anyone here have any info on these? > > > Larry -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] NE70V neon tubes
Hi Larry, talking about this auction? Ebay # 160498913376 I saw them, too, but sadly I do not know what they are, either. The nomenclature NE suggests that they are some kind of neon bulb. Jens Am 05.11.2010 00:02, schrieb Larry: I've just purchased a pair of Amperite NE70V neon tubes. The seller has no information on them and I've found nothing on the web. They appear to have an octal base and a large circular plate in the center. Does anyone here have any info on these? Larry -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
[neonixie-l] NE70V neon tubes
I've just purchased a pair of Amperite NE70V neon tubes. The seller has no information on them and I've found nothing on the web. They appear to have an octal base and a large circular plate in the center. Does anyone here have any info on these? Larry -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Large tubes - advice needed for not getting swindled on ebay
Hi Adam, Even the IN-14 has risen in price dramatically. When I built my wife's clock 5 years ago, they were something like $1/each. Now they are something like $6/each. Actually they are about $4 each, but this is still very much, yes. [...] I continue to recommend the IN-12 for new designs, it has the same digit height as the IN-14 and is $1/tube. I wonder if the reason they are still cheap is because they are end-view tubes? Probably. Personally, I do like side view tubes much more. Another reason might be their base that requires a socket. Jens -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
Re: [neonixie-l] Large tubes - advice needed for not getting swindled on ebay
Even the IN-14 has risen in price dramatically. When I built my wife's clock 5 years ago, they were something like $1/each. Now they are something like $6/each. She made me stockpile enough of the things to give her confidence that there will be replacement tubes for her clock for the rest of her life... and she's only 34, so that is a lot of tubes! Luckily, it's made it 5 years without needing new tubes, so maybe I don't need as many as I have But I'm still not allowed to get into her "stash" for new clock designs. :) I continue to recommend the IN-12 for new designs, it has the same digit height as the IN-14 and is $1/tube. I wonder if the reason they are still cheap is because they are end-view tubes? -Adam jb-electronics wrote: But Shane is right: For a beginner a tube like the IN-14 ist very nice. In fact, I still like it very much. Jens -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to neonixi...@googlegroups.com. To unsubscribe from this group, send email to neonixie-l+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
