Re: [neonixie-l] Re: Making Nixie Tubes
What is the 'ceramic paint', visible in many Russian nixies, deketrons and vfd tubes? May be this ia an good alternative for home-made tubes! It's called Glass Frit, or Frit glass. I don't think that's the same thing. Frit glass is used to seal incompatible or delicate glasses together by sintering (like the end mirrors in soft seal HeNe tubes). I suspect Eric is asking about the white paint on the internal leads and structures of nixies, presumably to discourage a discharge between the leads, so it will be confined to the desired location on the cathodes. I wouldn't be surprised if it's similar to the powdered alumina suspension that vacuum tube heaters are dipped in to insulate them from the cathodes. It's a similar color, it's known to be an insulator, and it doesn't spoil a vacuum. According to this page: http://www.thevalvepage.com/valvetek/heater/heater.htm This suspension is composed of a very pure, fused and milled alumina, in a solution of methanol, aluminium nitrate salt, and distilled water. - John KG4L -- You received this message because you are subscribed to the Google Groups neonixie-l group. To post to this group, send an email to neonixie-l@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: Making Nixie Tubes
What is the 'ceramic paint', visible in many Russian nixies, deketrons and vfd tubes? May be this ia an good alternative for home-made tubes! eric -Original Message- From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of A.J. Franzman Sent: donderdag 2 juni 2011 1:45 To: neonixie-l Subject: [neonixie-l] Re: Making Nixie Tubes On Jun 1, 2:07 pm, John Rehwinkel jreh...@mac.com wrote: Does anyone know what the insulation material used between the cathodes is? It looks like it might be a tiny ceramic bead, but now we're wondering if it is really mica. Depends on the nixie. I've seen ceramic, mica, and glass. Any would work, I imagine. I got a quote for tiny ceramic rings for this purpose, but it was too expensive for me. Perhaps glass seed beads would work (I've used these to make crackle neon tubing, and they worked fine). You'd have to make your support rods thin enough to fit through the beads, naturally. One thing you usually can't see without disassembling a nixie, is that most of them have a section of tiny glass tubing that's fit over each metal support post, before the cathodes and ceramic spacers are threaded on. A.J. -- You received this message because you are subscribed to the Google Groups neonixie-l group. To post to this group, send an email to neonixie-l@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. -- You received this message because you are subscribed to the Google Groups neonixie-l group. To post to this group, send an email to neonixie-l@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: Making Nixie Tubes
It's called Glass Frit, or Frit glass. http://en.wikipedia.org/wiki/Frit // Per. On 13/06/2011, at 23.34, Tidak Ada wrote: What is the 'ceramic paint', visible in many Russian nixies, deketrons and vfd tubes? May be this ia an good alternative for home-made tubes! eric -- You received this message because you are subscribed to the Google Groups neonixie-l group. To post to this group, send an email to neonixie-l@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: Making Nixie Tubes
On Jun 1, 2:07 pm, John Rehwinkel jreh...@mac.com wrote: Does anyone know what the insulation material used between the cathodes is? It looks like it might be a tiny ceramic bead, but now we're wondering if it is really mica. Depends on the nixie. I've seen ceramic, mica, and glass. Any would work, I imagine. I got a quote for tiny ceramic rings for this purpose, but it was too expensive for me. Perhaps glass seed beads would work (I've used these to make crackle neon tubing, and they worked fine). You'd have to make your support rods thin enough to fit through the beads, naturally. One thing you usually can't see without disassembling a nixie, is that most of them have a section of tiny glass tubing that's fit over each metal support post, before the cathodes and ceramic spacers are threaded on. A.J. -- You received this message because you are subscribed to the Google Groups neonixie-l group. To post to this group, send an email to neonixie-l@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.
