Re: [neonixie-l] OSHW Electrostatic CRT Driver Design
Quoth coggs at 2014-06-07 10:17 ... Looks very useful for activating O-scope tubes.. http://tubetime.us/?p=183 Ooh, PSU looks ideal for a photomultiplier tube - been wondering about how to power the one I've got. (Will need multiplier - tube runs at 2.4kV.) Two tubes in the project, but both vacuum ;-) [Experiment to see if low-energy x-rays (10-25kV) or gamma rays (0.5 uCi Co60 sealed source) can cause scintillation in a chunk of native scheelite. If nothing visible, will use PMT as detector.] M -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/53926BDE.8010302%40smiffytech.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Camera Neons
I knew I'd seen these somewhere - disposable camera boards: http://www.goldmine-elec-products.com/prodinfo.asp?number=G17610B Also available singly, plus they have another type on there - I put 'disposable camera' into the site search. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/5388EE8A.5020402%40smiffytech.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Your message in neonixie-l was denied
Quoth Instrument Resources of America at 2014-05-09 12:01 ... Can you tell me at least tell me which message it was, and explain why it was denied, so that I can at least have a small chance to correct or modify it?? Thanks Ira. I'm not sure it's your message at all, because I got that too. Assuming that there's something up with the list configuration so that unauthorised posts are getting bounced to the list, rather than the sender. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/536C4103.1010604%40smiffytech.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Neon size limitations?
Quoth Tidak Ada at 2014-04-29 06:13 ... I once opened a 50 cm B/W picture tube to make a lamp of it. I carefully packed the tube in thick blankets and then filed off the exhaust nipple. About one minute of hissing and the pressure was equilibrated. No danger at all! Aha! I wanted to get the electron gun and base of a CRT, to re-mount into a longer accelerator structure - was wondering how to break the vacuum safely. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/535EBE62.7030407%40smiffytech.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Neon size limitations?
Quoth JohnK at 2014-04-29 11:37 ... ... What is the chemical after later exposure to air? And is oxygen the problem? (And does the problem apply to more recent CRTs.) Just pondering whether it might be possible to broach the vacuum under a gas flood (like Ar/CO2) to mitigate damage. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/535F1BCD.2080900%40smiffytech.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Links to Vintage Russian Electronics
Quoth Joseph Bento at 2014-04-06 06:54 ... Does anyone have links to photos of Russian military equipment that contains the Nixies we covet? I'd enjoy seeing photos of IN-17s, IN-12's etc in service. Good question. Be nice to see some of the ex-Soviet parts (not just Nixies) I'm using in original context. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/53407BAC.4030705%40smiffytech.com. For more options, visit https://groups.google.com/d/optout.
Re: [neonixie-l] Math wizzards....
Regarding my previous mention of the LM3914, I was incorrect in stating that you can only have a growing/shrinking stack of LEDs - there is a Dot Mode that would provide the motion of a pendulum bob quite nicely, I think. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/530922F4.2030500%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Help with upgrading my soldering iron
Hi Hakko FX888D digital soldering station I swear by (rather than at) my FX888 - I have the analogue version. Tend to use it for all my fine stuff, in conjunction with a Leica GZ6 binocular microscope that I got for a real song on eBay. (I'm 99% SMD, unless doing high voltage stuff, or prototyping.) For day-to-day, heavier-duty stuff, I'm still using my ancient Antex CS. M -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/53011860.2070800%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] 2 Hickok Ford Vehicle Simulator Analog computers
Quoth lai...@wcoil.com at 2014-02-04 00:09 ... Check out auction 350987319019. It appears to be partial analog computers made by Hickok that simulate Ford vehicles. Most likely solid state but check out the card readers. They look like cardmatic tube tester card readers. So maybe you could simulate the suspension on a Pinto and test a 6L6 on the same machine! Standard disclaimer, not my auction etc. Tim Laing Oh, my. If I had the space and a squillion dollars for international shipping, I'd take 'em like a shot. John - any idea of what the Nixies in the Sequoyah were for? Voltmeters? Of particular interest, as I'm in the throes of designing a simple analogue computer. My only output devices are currently a pair of large, ex-Soviet, centre-zero microammeters wired as voltmeters (ie: pure analogue.) Had been wondering whether to include a digital voltmeters too. Whilst I'm actually building it for practical reasons, it WOULD look good with some neon on there. My biggest part of the design challenge is getting the cost of the patching down - even cheap banana jacks become expensive when you need hundreds! M -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/52EFEB57.8050208%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Cold Cathode Tubes (JB Dance) available in reprint...
Quoth Dave Brown at 2014-01-10 06:51 ... You can download it as a pdf from there too, as well as a few other formats. I did just that :-) Now in my ever-expanding library of out-of-print material. Go, the scanners! -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/52CF05B0.6050502%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Merry Christmas, Happy Hanukkah and Joy to everyone. Even if it is not your time zone Now ;)
Quoth Charles MacDonald at 2013-12-25 14:41 ... And Yes, It is well into Opening Presents time Already in Europe, Africa and Asia. And Oceania! (Mid-afternoon, here.) I just want to take the time to thank all the folks who post on the main mailing lists I follow for loads of entertaining discussion throughout the year. Seconded! It's the folks on lists like these that can make the difference of an enjoyable hobby and a source of frustration. Thanks all, from me. M -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/52BA6744.50003%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Anyone used Iteadstudio for PCBs?
Quoth Steven Donaldson at 2013-12-10 07:28 ... Matt, What do the stencils from oshstencil.com http://oshstencil.com actually look like? Are they just the sheet of Polyimide that you lay on the board, smear, and lift or is there some sort of jig it goes into? I have yet to order from them, but it is just a polyimide sheet. They sell a little jig for 5 USD - just two L-shaped pieces of some material, to help hold the stencil flat. (See pricing page for picture.) -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/52A6326A.8050305%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] OT: Sensor networks... (motes)
Quoth Nick at 2013-12-03 00:44 ... OT, I know, but anyone here got much experience with building motes, especially low power (and cheap) ones? Here's a possible platform: http://www.ti.com/ww/en/launchpad/home_head.html?DCMP=Value_LineHQS=launchpad The MSP430 Launchpad is (very) cheap, low-power. TI's toolchain free for use with parts that size. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/529CDCA1.8040101%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] stump tail cathode lizard
Quoth westdave at 2013-12-03 02:56 ... matthew smiths ...sleepy lizards? Local term for them. But wouldn't they make an amazing clock? Seriously - a pair of those sculpted and gilded in a C19th French meets Steampunk Nixie clock. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/529CEB06.60102%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Slightly OT - 2kV voltage isolation?
Quoth Grahame Marsh at 2013-12-01 19:18 ... Thank you for the paper it has helped a lot - if I have read it correctly, the best performance is a catagory 3 opto coupler can stand off 1kVDC for 100 000 hrs. So it looks like my search for a part ends 'cause there is no such part... back to the drawing board. I've looked at comms with HV systems before. I2C it ain't - you'd need to do protocol conversions - but I figured TOSLINK would be a reasonably cheap option, considering availability of parts. Currently trying to figure how to get a microcontroller to drive a regulator for the filament voltage of an X-ray tube (easy) but fully isolated (not so easy with up to 40kV) plus monitoring the current. Discounted Bluetooth as too fiddly/unreliable - TOSLINK with half-metre optical fibres would isolate to about any voltage I'd want. UART comms, rather than I2C, though. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/529B023E.90007%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Slightly OT - 2kV voltage isolation?
Quoth Michel van der Meij at 2013-12-02 08:16 ... ...The only problem is that you need to have a power supply available between the 2 optocouplers that can carry a 1kV working voltage. For testing you could use a 9V battery, or a DC/DC converter as in attached drawing. You can also use cascaded (isolated) DC/DC converters - every transformer providing isolation. (I believe that transformer cascading is one method of getting very high voltages in the first place.) The high-isolation stuff I've been looking at would probably just have a couple of AA cells per stage - cheap and easy, as this isn't a system that would be run more than occasionally. -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/529BB22F.5070505%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: BAD DEKATRON SELLER fruwlo (Irina Bashkevich) on eBay
Quoth Chris Stalin at 16/11/13 07:10... ... Do you mind sharing who you bought the geiger counter from? I was just about the go ahead and grab one for a geiger counter project. SBM20 or maybe STS6. This is the vendor, but she doesn't have any at present: http://www.ebay.com/sch/lenalosku/m.html However, this guy has them (DP-5V) listed, also sells Nixies, GM tubes, Xray tubes, capacitors, and more. Found him (Denis) most helpful: http://www.sovtube.com/en/ If there are things listed in bulk lots but not singly, just ask. SBM20s are the low-range tube used in the DP5-V, pretty good work-horses they are. If you want a bit more sensitivity and don't mind extra physical size, The SI22G is VERY sensitive. Not sure how this list handles attachments (if at all) but I've just taken a photo of an SBM-21 (in plastic bag,) SBM20 (middle,) SI22G (huge!) for comparison. Have plans to make a Nixie display benchtop counter, using as close as possible to the DP5-V tube-regulated power supply as I can. (Will still cheat and use a microcontroller, though!) Cheers M -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/5286940A.30702%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Atmel clock/timer projects
Quoth NeonJohn at 2013-11-05 08:46 ... I'm working on a simple count-down timer that will time from 0.1 to 999 seconds with 0.1 second resolution. I'm using an Atmel ATmega8515, probably not the best chip but I have a ton of 'em from another project. I've been away from AVR for a good while now (defected to Freescale) but, if you don't get any joy, I'd suggest you try www.avrfreaks.net. Cheers M -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/52781E95.6060605%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: Dekatrons with thyratrons
Thank you, Eric, Threeneurons. What I am taking away from this is: * Keep my thyratrons for the reason I bought them: spares for my Geiger counters. (I have two: because the original wasn't working, the Ebay vendor sent not the parts (missing GM tubes) I asked for, but a whole unit.) * Consider a build with thermionic tubes. Haven't used them before, but have been looking for an excuse. If I had lots of time and money, I'd love to convert a Verilog clock design back to discrete logic - with tubes! -- Matthew Smith Business: http://www.smiffytech.com Blog: http://www.smiffysplace.com Linkedin: http://www.linkedin.com/in/smiffy Flickr: http://www.flickr.com/photos/msmiffy Twitter: http://twitter.com/smiffy ABN 16 391 203 815 -- 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/524D3E6C.6020307%40smiffytech.com. For more options, visit https://groups.google.com/groups/opt_out.
Re: [neonixie-l] Re: Dekatrons with thyratrons
On Wednesday, October 2, 2013 5:52:27 PM UTC+9:30, Tidak Ada wrote: They are useful, but consider the MTBF is 5000 h ! I wonder how that equates to actual firings, because I'd guess that it's energised time that counts. M -- 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/a47baa35-59d7-42e9-b06d-479ec5c2ed93%40googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
