[neonixie-l] Plasma Globe Substitute
Neat! I use a Voltarc ELT (electronic lamp tester) normally used to test fluorescent tubes in situ. It's a cool unit and fits neatly in a pocket... Nick -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/a4de5053-112a-4643-b152-b01a331ba654%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Re: Plasma Globe Substitute
I have a plasma globe from 1985 (Eye of the Storm), and although it still works nicely, I get pretty weak glowing in nixies, etc. After all these years I still havn't placed a wire loop on my scope to look at the frequency waveform, but I can hear it in the 10-12kHz range. What frequency are you running ? -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/80b0f285-4881-47b5-b386-b3f1e361c35a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Plasma Globe Substitute
GREEN for a voltage wire? What is the first tube's number? John K [PS nice toy.] - Original Message - From: 'threeneurons' via neonixie-l To: neonixie-l@googlegroups.com Sent: Friday, March 06, 2015 5:07 AM Subject: [neonixie-l] Plasma Globe Substitute Last week, I went to the TRW Swapmeet. I met a pair of our neon buddies, Westdave, and Gary, at one of vendor booths. The vendor had a bunch of element discharge tubes. Not the regular noble gas tubes, like neon or helium, but of mostly vaporized metal, gold, mercury ... He wanted $25 a piece for them. Dave and Gary picked up a couple each. Me, being a cheap SOB, and seeing they weren't dekatrons, passed. Later at Gary's house, we wanted to light them up. Gary use to have a plasma globe. If you stick a nixie tube near it, the tube would glow. But it had been broken, and he thrown it out. No big deal, he has a tesla coil in the garage. Again, no go, since it was dismantled, and he was in the middle rebuilding it. No glow joy, that day. Well I threw together this little toy, to throw out a few KV of AC, to make a few ions: The circuit, is pretty simple. It just my nixie supply circuit, adjusted to output 300VDC But instead of using a simple coil, I used a transformer. The primary side, makes a 300Vpp pulse. The transformer has a ~20:1 turns ratio. 16 turns on the primary, and a tad over 300 on the secondary. The key was isolate not only the primary from secondary,but successive layers of the secondary. They maybe more kapton tape on it than wire ! The tubes are not plugged into a socket, but on a conductive platform (wire mesh), that's hooked up to HV. That green wire hanging out, is also the HV. Touch a gas filled tube to it, and it will lite up ! It's also portable. I powered it from a 12VDC source, I often drag along with me. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5b99bbc3-629a-4744-8ef6-5f30128204c8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/BC5AE0CB094F40309078660FDB6AB906%40compunet4f9da9. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Plasma Globe Substitute
That wire has the HV on it, too. The other side of the secondary is tied low thru an NE-2. That's a BH rectifier tube in the 1st photo. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/727a9ed9-08db-4e39-a1c0-29a40195052a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Plasma Globe Substitute
I was querying the choice of colour for a wire that has voltage. In this part of the world Green is associated with earth/ground. [Although Green/Yellow has overtaken it.] John K Australia - Original Message - From: 'threeneurons' via neonixie-l neonixie-l@googlegroups.com To: neonixie-l@googlegroups.com Sent: Friday, March 06, 2015 8:58 AM Subject: Re: [neonixie-l] Plasma Globe Substitute That wire has the HV on it, too. The other side of the secondary is tied low thru an NE-2. That's a BH rectifier tube in the 1st photo. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/727a9ed9-08db-4e39-a1c0-29a40195052a%40googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/1CF5C78B67E24C48B0868F2505E4B719%40compunet4f9da9. For more options, visit https://groups.google.com/d/optout.
[neonixie-l] Plasma Globe Substitute
Last week, I went to the TRW Swapmeet. I met a pair of our neon buddies, Westdave, and Gary, at one of vendor booths. The vendor had a bunch of element discharge tubes. Not the regular noble gas tubes, like neon or helium, but of mostly vaporized metal, gold, mercury ... He wanted $25 a piece for them. Dave and Gary picked up a couple each. Me, being a cheap SOB, and seeing they weren't dekatrons, passed. Later at Gary's house, we wanted to light them up. Gary use to have a plasma globe. If you stick a nixie tube near it, the tube would glow. But it had been broken, and he thrown it out. No big deal, he has a tesla coil in the garage. Again, no go, since it was dismantled, and he was in the middle rebuilding it. No glow joy, that day. Well I threw together this little toy, to throw out a few KV of AC, to make a few ions: https://lh4.googleusercontent.com/-g1WFoBG9Q0A/VPie4ikNHYI/Uj8/1qp4E0CaH8I/s1600/Plasma_Gen01.jpg https://lh3.googleusercontent.com/-CrwNczn3kX8/VPifMcnNWQI/UkE/PkTQ2dlChxA/s1600/Plasma_Gen03.jpg The circuit, is pretty simple. It just my nixie supply circuit, adjusted to output 300VDC But instead of using a simple coil, I used a transformer. The primary side, makes a 300Vpp pulse. The transformer has a ~20:1 turns ratio. 16 turns on the primary, and a tad over 300 on the secondary. The key was isolate not only the primary from secondary,but successive layers of the secondary. They maybe more kapton tape on it than wire ! The tubes are not plugged into a socket, but on a conductive platform (wire mesh), that's hooked up to HV. That green wire hanging out, is also the HV. Touch a gas filled tube to it, and it will lite up ! It's also portable. I powered it from a 12VDC source, I often drag along with me. -- 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 neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5b99bbc3-629a-4744-8ef6-5f30128204c8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
