[neonixie-l] Re: IN-9's for sale
Padded envelope? They would never survive my mail carrier. On Nov 27, 5:35 pm, Dan Foster danfoster3...@gmail.com wrote: $1.25 per tube, any quantity. Shipping is a USPS padded flat rate envelope. $5.30 inside US, $12.95 to Canada or Mexico, and $16.95 to any other country. -- 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 https://groups.google.com/groups/opt_out.
Re: [neonixie-l] low power nixie tubes?
And if you want something truly bizarre and high-voltage, there are devices like the ITS1A, which uses 50V, 100V, and -300V supplies, but the segments are directly controllable with TTL logic! Any ideas on where to buy these tubes? Very cool. Bet I can't afford 'em anyway. Vitaly might have some, or you can check eBay. I bought some there, 4 for $26. - John -- 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 https://groups.google.com/groups/opt_out.
[neonixie-l] Re: 5BP1 CRT
Not that I'm biased (!), but if you are able to roll your own, you can see two nice designs employing circle graphics at Grahame's sitehttp://www.sgitheach.org.uk/scope2.html and at Oscilloclock.com . These are based on David's original design at cathodecorner.com . There are many other raster graphics based designs, which have kits available. Dutchtronix http://www.dutchtronix.com/ScopeClock.htm must surely be the most common, but a google will show more. Aaron On Tuesday, November 27, 2012 9:54:24 PM UTC+9, Terry S wrote: Interesting offer -- now the dilemma -- do I open the box and test the tube, or leave it in the box untested, where it is perhaps worth more to a collector? I'm really interested in building a scope clock with the tube. Trying to find a kit I like is the problem. Any recommendations? Terry On Nov 25, 3:39 pm, threeneurons threeneur...@yahoo.com wrote: No, I have 2 5BP4s (white phosphor), and they are rather large animals. I don't know what I'm going to do with mine either. On top of that I also have 2 5UP1s. But, I did make a little tube checker, to at least, light them up, and do rough deflection tests. http://threeneurons.files.wordpress.com/2012/09/crt_tst01.jpg It doesn't have a socket, but individual socket pins, so it can be hooked up to just about any electrostatically deflected tube, that can be lit up with ~1700V. The 5BP1 can be operated at 1500V. The tester is small, so if you're interested I could loan it to you. -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/HC2tjp1_2ToJ. For more options, visit https://groups.google.com/groups/opt_out.
[neonixie-l] Re: 5BP1 CRT
On Wednesday, 28 November 2012 15:39:43 UTC, Oscilloclock wrote: Not that I'm biased (!), but if you are able to roll your own, you can see two nice designs employing circle graphics at Grahame's sitehttp://www.sgitheach.org.uk/scope2.html and at Oscilloclock.com . These are based on David's original design at cathodecorner.com . There are many other raster graphics based designs, which have kits available. Dutchtronix http://www.dutchtronix.com/ScopeClock.htm must surely be the most common, but a google will show more. Aaron No disrespect to David, but the original idea comes from old examples of character generation for RADAR ATC (air traffic control) screens etc. when everything was analogue. https://lh6.googleusercontent.com/-F5dLVuJRvYg/ULZljAfjb5I/Aow/W4AIoC2ynNo/s1600/2009716214148489.gif R. L. White, Forming Handwritten. Like Digits on CRI Display, Electronics,32:11, p 138-140 Nick -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/aPpwoCQLKTkJ. For more options, visit https://groups.google.com/groups/opt_out.
[neonixie-l] Re: 5BP1 CRT
Here's the checker schematic. http://threeneurons.files.wordpress.com/2012/11/crt_tstr.gif It uses 2 MC34063 chips. One for the HV, and the other for the 6V heater. 10 signals go to the CRT tube. -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/1JyMovqOdZ0J. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: 5BP1 CRT
On 12-11-28 02:59 PM, threeneurons wrote: Here's the checker schematic. http://threeneurons.files.wordpress.com/2012/11/crt_tstr.gif It uses 2 MC34063 chips. One for the HV, and the other for the 6V heater. 10 signals go to the CRT tube. A lot of the old scope circuits used to run the cathode at a negative voltage. (this required a well insulated filament transformer.) but meant that the defection plates were almost at ground potential. One could create a test signal that would draw an pattern on the screen. -- Charles MacDonald Stittsville Ontario cm...@zeusprune.ca Just Beyond the Fringe http://Charles.MacDonald.org/tubes No Microsoft Products were used in sending this e-mail. -- 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 https://groups.google.com/groups/opt_out.
[neonixie-l] Re: IN-9's for sale
Just out of interest, is the IN-9 brighter than the IN-13? IN-9 requires 10mA current for full bar and IN-13 4mA. Wondering where the extra 6mA goes to, heat or light? Michel On Tuesday, November 27, 2012 5:41:16 AM UTC+11, Dan Foster wrote: Hello, I have a few (10) IN-9 Bargraph tubes that I no longer want, thought I'd ask here before I list them on eBay. Anyone interested? -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/tokUQ1-9DFMJ. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: IN-9's for sale
I found this at radiomuseum.org: quote At this point, I should clarify the difference between the IN-9 and the IN-13 The IN-13 takes up to 5mA for a 12cm orange glow from Neon gas, and has three electrodes. One perforated cylinder as the anode, a central wire cathode for the glow, and a short pilot cathode to start the glow. Most IN-9 take up to 10mA for a 10cm purple glow from Argon gas, and only have two electrodes. But some IN-9, like the one used in this thread, are filled with Neon gas and glow orange, but the current rating and size are still same. Confusion between the two glow colors caused me to make a mistake I made in this thread: The tube you see in this thread is a*2 pin IN-9*, not a 3 pin IN-13. In terms of application of the tube, the two glow tubes the significant differences are the maximum current and the extra pilot cathode for the IN-13. The strike voltage around 120V and sustain voltage around 100V are similar among all three tubes. The IN-13 has twice the sensitivity of the IN-9, so this should be taken into account when applying the tube. If the glow swing is too extreme, some resistance in series with the tube can be added. The pilot cathode of the IN-13 requires a small current to insure that the main cathode starts properly. This negative bias could be obtained with a 100-500kOhm resistor to the grid circuit of the local oscillator. The grid of the local oscillator, usually develops around -10V, which is enough to supply up to 100uA into the pilot cathode of the IN-13. The extra -10V of bias at the pilot cathode of the IN-13, eliminates the need for the startup circuit with a diode and resistor, which I included in the circuit above for the IN-9. This was necessary because the low B+ of an AC/DC 117VAC radio may not guaranty the starting voltage for the two terminal IN-9. Best regards, -Joe /quote -Adam On 11/28/2012 1:08 PM, Michel wrote: Just out of interest, is the IN-9 brighter than the IN-13? IN-9 requires 10mA current for full bar and IN-13 4mA. Wondering where the extra 6mA goes to, heat or light? Michel On Tuesday, November 27, 2012 5:41:16 AM UTC+11, Dan Foster wrote: Hello, I have a few (10) IN-9 Bargraph tubes that I no longer want, thought I'd ask here before I list them on eBay. Anyone interested? -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/tokUQ1-9DFMJ. For more options, visit https://groups.google.com/groups/opt_out. -- 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 https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: IN-9's for sale
My PayPal email is danfoster3...@gmail.com I'll send it in a box, same shipping cost. Send me an email with your address, etc. On Tuesday, November 27, 2012 9:27:30 PM UTC-5, bryan wrote: I am interested. I'll send the money for 4 tubes and shipping in USA this Friday and as soon as you receive the payment from me, you can ship them. Do you have PayPal? Thanks! -- Bryan Goines Sent with Sparrow http://www.sparrowmailapp.com/?sig On Tuesday, November 27, 2012 at 5:35 PM, Dan Foster wrote: $1.25 per tube, any quantity. Shipping is a USPS padded flat rate envelope. $5.30 inside US, $12.95 to Canada or Mexico, and $16.95 to any other country. -- You received this message because you are subscribed to the Google Groups neonixie-l group. To post to this group, send an email to neoni...@googlegroups.comjavascript: . To unsubscribe from this group, send email to neonixie-l+...@googlegroups.com javascript:. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/5JnFXN31eBAJ. For more options, visit https://groups.google.com/groups/opt_out. -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/gjUcMBy7-3sJ. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: IN-9's for sale
Thanks for the info Adam. It doesn't really explain why the current is higher / sensitivity is lower for the IN-9. I still expect the IN9 to be brighter as the higher current should ionize more neon. Maybe I should measure it one day. Michel On Thursday, November 29, 2012 8:25:31 AM UTC+11, Adam Jacobs wrote: I found this at radiomuseum.org: quote At this point, I should clarify the difference between the IN-9 and the IN-13 The IN-13 takes up to 5mA for a 12cm orange glow from Neon gas, and has three electrodes. One perforated cylinder as the anode, a central wire cathode for the glow, and a short pilot cathode to start the glow. Most IN-9 take up to 10mA for a 10cm purple glow from Argon gas, and only have two electrodes. But some IN-9, like the one used in this thread, are filled with Neon gas and glow orange, but the current rating and size are still same. Confusion between the two glow colors caused me to make a mistake I made in this thread: The tube you see in this thread is a *2 pin IN-9*, not a 3 pin IN-13. In terms of application of the tube, the two glow tubes the significant differences are the maximum current and the extra pilot cathode for the IN-13. The strike voltage around 120V and sustain voltage around 100V are similar among all three tubes. The IN-13 has twice the sensitivity of the IN-9, so this should be taken into account when applying the tube. If the glow swing is too extreme, some resistance in series with the tube can be added. The pilot cathode of the IN-13 requires a small current to insure that the main cathode starts properly. This negative bias could be obtained with a 100-500kOhm resistor to the grid circuit of the local oscillator. The grid of the local oscillator, usually develops around -10V, which is enough to supply up to 100uA into the pilot cathode of the IN-13. The extra -10V of bias at the pilot cathode of the IN-13, eliminates the need for the startup circuit with a diode and resistor, which I included in the circuit above for the IN-9. This was necessary because the low B+ of an AC/DC 117VAC radio may not guaranty the starting voltage for the two terminal IN-9. Best regards, -Joe /quote -Adam On 11/28/2012 1:08 PM, Michel wrote: Just out of interest, is the IN-9 brighter than the IN-13? IN-9 requires 10mA current for full bar and IN-13 4mA. Wondering where the extra 6mA goes to, heat or light? Michel On Tuesday, November 27, 2012 5:41:16 AM UTC+11, Dan Foster wrote: Hello, I have a few (10) IN-9 Bargraph tubes that I no longer want, thought I'd ask here before I list them on eBay. Anyone interested? -- You received this message because you are subscribed to the Google Groups neonixie-l group. To post to this group, send an email to neoni...@googlegroups.comjavascript: . To unsubscribe from this group, send email to neonixie-l+...@googlegroups.com javascript:. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/tokUQ1-9DFMJ. For more options, visit https://groups.google.com/groups/opt_out. -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/9dhUW-PyGOwJ. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: IN-9's for sale
Michel - that's exactly what happens. IN-9 tubes are significantly brighter than IN-13, and to my eyes much better for general use. I made this thing ( http://youtu.be/mQ1567EFCY0) with IN-13 and both flavours of IN9. Although the IN-13 were bigger, used less current and were more predictable to play with, the dimmer display meant that version needed a fairly low ambient light environment. FYI IN9 are also more prone to 'sleeping sickness', particularly the argon ones. Cheers, Jon. On Wednesday, November 28, 2012 10:00:26 PM UTC, Michel wrote: Thanks for the info Adam. It doesn't really explain why the current is higher / sensitivity is lower for the IN-9. I still expect the IN9 to be brighter as the higher current should ionize more neon. Maybe I should measure it one day. Michel -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/F-SXQ1p0qHIJ. For more options, visit https://groups.google.com/groups/opt_out.
RE: [neonixie-l] Re: IN-9's for sale
That is an interesting display Jon, thanks for the info and link! How do you make the step down animation? Did you post a schematic somewhere of this clock? The sleeping sickness is probably related to the part of the tube that is not lit? I mean, in your clock setup this wouldn't really be an issue, right? Michel From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of Jon Sent: Thursday, 29 November 2012 9:50 AM To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l] Re: IN-9's for sale Michel - that's exactly what happens. IN-9 tubes are significantly brighter than IN-13, and to my eyes much better for general use. I made this thing (http://youtu.be/mQ1567EFCY0) with IN-13 and both flavours of IN9. Although the IN-13 were bigger, used less current and were more predictable to play with, the dimmer display meant that version needed a fairly low ambient light environment. FYI IN9 are also more prone to 'sleeping sickness', particularly the argon ones. Cheers, Jon. On Wednesday, November 28, 2012 10:00:26 PM UTC, Michel wrote: Thanks for the info Adam. It doesn't really explain why the current is higher / sensitivity is lower for the IN-9. I still expect the IN9 to be brighter as the higher current should ionize more neon. Maybe I should measure it one day. Michel -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/F-SXQ1p0qHIJ. For more options, visit https://groups.google.com/groups/opt_out. No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2793 / Virus Database: 2629/5905 - Release Date: 11/19/12 Internal Virus Database is out of date. -- 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 https://groups.google.com/groups/opt_out.
RE: [neonixie-l] Re: IN-9's for sale
I think I know how to do the step-down animation, you probably switch anode and cathode in an H-bridge style circuit. Anyway, I think the tubes are really interesting so I bought myself a bunch on ebay. Amazing how cheap they actually are!! Even a complete clock with 4 7-segment displays cost only a little bit. Michel From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of Jon Sent: Thursday, 29 November 2012 9:50 AM To: neonixie-l@googlegroups.com Subject: Re: [neonixie-l] Re: IN-9's for sale Michel - that's exactly what happens. IN-9 tubes are significantly brighter than IN-13, and to my eyes much better for general use. I made this thing (http://youtu.be/mQ1567EFCY0) with IN-13 and both flavours of IN9. Although the IN-13 were bigger, used less current and were more predictable to play with, the dimmer display meant that version needed a fairly low ambient light environment. FYI IN9 are also more prone to 'sleeping sickness', particularly the argon ones. Cheers, Jon. On Wednesday, November 28, 2012 10:00:26 PM UTC, Michel wrote: Thanks for the info Adam. It doesn't really explain why the current is higher / sensitivity is lower for the IN-9. I still expect the IN9 to be brighter as the higher current should ionize more neon. Maybe I should measure it one day. Michel -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/F-SXQ1p0qHIJ. For more options, visit https://groups.google.com/groups/opt_out. No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2793 / Virus Database: 2629/5905 - Release Date: 11/19/12 Internal Virus Database is out of date. -- 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 https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: IN-9's for sale
Glad you liked it - was my first venture into designing my own clocks. I haven't posted a schematic, but there isn't really much to it in hardware. The tubes are driven by single transistor voltage-controlled current sinks which are run by an octal DAC controlled by a PIC. The rest is just HV generation, managing the RTC and USB interface etc. The complexity is in the software rather than the hardware (in part because that's my background!). Grahame has also built a similar single digit clock using IN-13 and the same octal DAC. The step down animation doesn't use any clever hardware like you suggest in the other post - all the effects are done in firmware. Sleeping sickness refers to the observation that you won't be able to light the full length of the tube with the rated current when you receive it from the supplier. Storage results in some kind of aging of the cathode surface which makes them resistant to glow. You can burn it off with over-current treatment, but not all tubes recover satisfactorily. My sense is that the effect hits IN9 argon IN9 neon IN13. Cheers, Jon. On Wednesday, November 28, 2012 11:12:22 PM UTC, Michel wrote: That is an interesting display Jon, thanks for the info and link! How do you make the step down animation? Did you post a schematic somewhere of this clock? The sleeping sickness is probably related to the part of the tube that is not lit? I mean, in your clock setup this wouldn’t really be an issue, right? Michel -- 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. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/1ZLVDwwmhsYJ. For more options, visit https://groups.google.com/groups/opt_out.
