Hello, here is a digest from shortly after I joined Neonixie, in early 2004. So I have been here just a little while. I also coordinated the over 1000 tube Richardson group buy. I chip something into the group every now and then. I also post once and a while when I list something on E-bay that might be interesting to the group. So I don't see any problems with Dieters post/advertizing. Dieter has added a lot to the group, his post is directly related to our hobby. If Dieter does well he is more likely to be going out and finding more tubes and new types of Nixies for all of the rest of us. Over the years I have seen a lot of people post new clocks etc that they have up for sale. So the long and short of it is I see no problem with the occasional blurb. The next one may be for that item you never knew you had to have. In Shameless Commerce Tim Laing
---------------------------- Original Message ---------------------------- Subject: [NEONIXIE-L] Digest Number 1053 From: neonixi...@yahoogroups.com Date: Sat, February 28, 2004 8:58 am To: neonixi...@yahoogroups.com -------------------------------------------------------------------------- ------------------------ Yahoo! Groups Sponsor ---------------------~--> Buy Ink Cartridges or Refill Kits for your HP, Epson, Canon or Lexmark Printer at MyInks.com. Free s/h on orders $50 or more to the US & Canada. http://www.c1tracking.com/l.asp?cid=5511 http://us.click.yahoo.com/mOAaAA/3exGAA/qnsNAA/CATolB/TM ---------------------------------------------------------------------~-> There are 19 messages in this issue. Topics in this digest: 1. Re: New NMEA parser From: "Chris" <fixit...@aol.com> 2. Re: New NMEA parser From: "Jonathan Peakall" <jpeak...@pacific.net> 3. Re: Re: Lies in PICland From: "Jonathan Peakall" <jpeak...@pacific.net> 4. Re: Poor data maintenance in PICland From: "Chris" <fixit...@aol.com> 5. Re: Re: New NMEA parser From: "J.C. Wren" <jcw...@jcwren.com> 6. Re: New NMEA parser From: "barnlop" <nailed_barna...@hotmail.com> 7. Re: Re: Poor data maintenance in PICland From: "Jonathan Peakall" <jpeak...@pacific.net> 8. Re: Poor data maintenance in PICland From: "Nick de Smith" <n...@desmith.net> 9. More Nixie Patents Found From: "Peter J. Stonard" <pston...@ix.netcom.com> 10. Re: Lies in PICland From: David Forbes <dfor...@dakotacom.net> 11. software for programmer From: "toomuchcoffee23" <toomuchcoffe...@yahoo.com> 12. Re: Lies in PICland From: "Chris" <fixit...@aol.com> 13. Re: New NMEA parser From: "Chris" <fixit...@aol.com> 14. Re: More Nixie Patents Found From: "Sal Brisindi" <tubema...@yahoo.com> 15. Radio Controlled Atomic Clock From: "James Drosopoulos" <jcd550...@aol.com> 16. Re: More Nixie Patents Found From: "Alan J. Franzman" <a.j.franz...@verizon.net> 17. Tho real atomic wristwatch, was: Radio Controlled Atomic Clock From: "Jorgen Lund-Nielsen" <dj...@web.de> 18. Re: Radio Controlled Atomic Clock From: "Chris" <fixit...@aol.com> 19. Re: Tho real atomic wristwatch, was: Radio Controlled Atomic Clock From: "Chris" <fixit...@aol.com> ________________________________________________________________________ ________________________________________________________________________ Message: 1 Date: Fri, 27 Feb 2004 14:58:10 -0000 From: "Chris" <fixit...@aol.com> Subject: Re: New NMEA parser --- In neonixi...@yahoogroups.com, "J.C. Wren" <jcwren@j...> wrote: <Cut to the quick> there's > no reason you couldn't hardcode some waypoints in, There is, No chip, beit a pic or any other, can take into memory every waypoint I am able to visit. I think you are suggesting a much grander project, perhaps the one you have recently finished ! ________________________________________________________________________ ________________________________________________________________________ Message: 2 Date: Fri, 27 Feb 2004 07:36:50 -0800 From: "Jonathan Peakall" <jpeak...@pacific.net> Subject: Re: New NMEA parser The 16F88 has 4k of code space, and it is easy to use a serial EEPROM like the MCP24C256. Then you would have oodles of room for hardcoded waypoints. Jonathan www.madlabs.info ----- Original Message ----- From: "J.C. Wren" <jcw...@jcwren.com> To: <neonixi...@yahoogroups.com> Sent: Friday, February 27, 2004 6:13 AM Subject: Re: [NEONIXIE-L] New NMEA parser > I dunno if those brain-dead PICs have enough code space, but there's > no reason you couldn't hardcode some waypoints in, and show range and > bearing from where you are a selected waypoint. I've got those > algorithms in C around here. They were used in the vehicle tracking > project I worked on. > > --jc ________________________________________________________________________ ________________________________________________________________________ Message: 3 Date: Fri, 27 Feb 2004 07:44:09 -0800 From: "Jonathan Peakall" <jpeak...@pacific.net> Subject: Re: Re: Lies in PICland Chris, So did it tolerate the 25mA worth of LED, or did that cause it to shut down too? I have a device I made that draws about 20mA from a 16F819 pin, and it has worked non stop for several months now. I must admit I don't usually run such large loads straight from a pin, so I don't know how well it works in general. Jonathan www.madlabs.info > > How about measuring what you actually get out or you'll never know > > now ! > > I should add that that's after I just measured an example of a > 16f872. > I get 25mA through a 3.3V LED and 28mA when I short across the LED, > as quickly as my meter can respond and display 28mA the output is > shut of by internal protection (I assume). > > Chris > ________________________________________________________________________ ________________________________________________________________________ Message: 4 Date: Fri, 27 Feb 2004 16:04:44 -0000 From: "Chris" <fixit...@aol.com> Subject: Re: Poor data maintenance in PICland --- In neonixi...@yahoogroups.com, "Jonathan Peakall" <jpeakall@p...> wrote: > Chris, > > So did it tolerate the 25mA worth of LED, or did that cause it to shut down > too? I have a device I made that draws about 20mA from a 16F819 pin, and it > has worked non stop for several months now. I must admit I don't usually run > such large loads straight from a pin, so I don't know how well it works in > general. > > Jonathan > > www.madlabs.info Heya Jonathan It copes just fine.....one project I've had running for over a year still puts out 26mA actually, into an LED with no resistor. (I think I interpreted 'can drive led's directly' too literally, or well, maybe not !) As for the sink limit, I haven't bothered to go above the 25mA from an output pin, but they withstand that no problem. If you need more you only need to parallel inputs or outputs till you get the required capacity I suppose ! Chris ________________________________________________________________________ ________________________________________________________________________ Message: 5 Date: Fri, 27 Feb 2004 11:11:27 -0500 From: "J.C. Wren" <jcw...@jcwren.com> Subject: Re: Re: New NMEA parser You can always hardcode your house, your mom's house, or your favorite repair shoppe. I'm not advocating storing waypoints as you go, or anything like that, just 1 or 3 significant waypoints. Besides, generally speaking, that information is more for entertainment purposes than useful navigation. --jc Chris wrote: > --- In neonixi...@yahoogroups.com, "J.C. Wren" <jcwren@j...> wrote: > <Cut to the quick> > there's > > no reason you couldn't hardcode some waypoints in, > > There is, No chip, beit a pic or any other, can take into memory > every waypoint I am able to visit. I think you are suggesting a much > grander project, perhaps the one you have recently finished ! ________________________________________________________________________ ________________________________________________________________________ Message: 6 Date: Fri, 27 Feb 2004 16:21:20 -0000 From: "barnlop" <nailed_barna...@hotmail.com> Subject: Re: New NMEA parser --- In neonixi...@yahoogroups.com, "Chris" <fixitsan@a...> wrote: > --- In neonixi...@yahoogroups.com, "J.C. Wren" <jcwren@j...> wrote: > <Cut to the quick> > there's > > no reason you couldn't hardcode some waypoints in, > > There is, No chip, beit a pic or any other, can take into memory > every waypoint I am able to visit. I think you are suggesting a much > grander project, perhaps the one you have recently finished ! Heh. You could use a nice visible reference point and calculate from a calendar: 14.42 - you are 251,000 miles from Tycho Crater! Neil :) ________________________________________________________________________ ________________________________________________________________________ Message: 7 Date: Fri, 27 Feb 2004 08:51:16 -0800 From: "Jonathan Peakall" <jpeak...@pacific.net> Subject: Re: Re: Poor data maintenance in PICland Chris, We are getting a little OT here, but I thought it was a no-no to parallel pins for more current? Jonathan www.madlabs.info > > As for the sink limit, I haven't bothered to go above the 25mA from > an output pin, but they withstand that no problem. If you need more > you only need to parallel inputs or outputs till you get the required > capacity I suppose ! > > Chris ________________________________________________________________________ ________________________________________________________________________ Message: 8 Date: Fri, 27 Feb 2004 20:04:26 -0000 From: "Nick de Smith" <n...@desmith.net> Subject: Re: Poor data maintenance in PICland --- In neonixi...@yahoogroups.com, "Jonathan Peakall" <jpeakall@p...> wrote: > Chris, > > We are getting a little OT here, but I thought it was a no-no to parallel > pins for more current? Its not that uncommon with CPLDs etc. You've just got to remember to drive both pins in the same direction ;-) Also, you should place a current sharing/limiting load resistor on each pin before commoning them... Nicko ________________________________________________________________________ ________________________________________________________________________ Message: 9 Date: Fri, 27 Feb 2004 20:13:42 -0000 From: "Peter J. Stonard" <pston...@ix.netcom.com> Subject: More Nixie Patents Found Greetings, I've found more Patents relating to "Glow Tubes" or "Read-Out Tubes" (what they called Nixies before they called them Nixies). Also, see the thread starting with Message 16784 To Wit: (1) Hancock Nov-50 2618760 Glow Tube Anode Construction (2) Maynard Jul-56 2756366 Luminous Discharge Tube And System (3) Hamel Feb-59 2874320 Indicating Device (1) 2618760 Was assigned to Northrup Aircraft, makes 9 claims, and places multiple anode grid wires between the cathodes. I don't think we have seen a commercial tube with this construction. (2) 2756366 Was assigned to National Union Electric Corp., makes 12 claims, and describes the end view tube we know as an NU GI-21. Hand formed wire numerals. Except to the NU GI-21 is that there is no dedicated anode, the unlit cathodes form the anodes for the lit numeral. (3) 2874320 Was assigned to Burroughs and makes 16 claims. This patent defines the top view Nixie we know today, and goes into detail on how the productivity of these tubes was improved by mass stamping of the cathode symbols. Further it claims the application of insulating materials to the rear of the cathode electrodes, allowing glow from the front only and greater density in stacking the cathodes. It also claims the stacking method of common mounting holes on each cathode electrode and insulator 'washers'. Comments Welcome! -- Peter J. Stonard Office phone/voicemail: (408) 377 7496 Cell phone/voicemail: (408) 489 2862 website: www.stonard.com email: pston...@ix.netcom.com ________________________________________________________________________ ________________________________________________________________________ Message: 10 Date: Fri, 27 Feb 2004 14:25:11 -0700 From: David Forbes <dfor...@dakotacom.net> Subject: Re: Lies in PICland At 7:19 PM +0000 2/26/04, Chris wrote: >--- In neonixi...@yahoogroups.com, "Chris" <fixitsan@a...> wrote: >> --- In neonixi...@yahoogroups.com, David Forbes <dforbes@d...> >wrote: >> > I don't see how they can claim that this part sources 25mA. The >Voh >> > typical is 2.7V with 5V supply! Vol is better, at 0.7V typical. >The >> > output voltage is highly temperature-dependent, and the temp >shown >> is >> > the die temp, which will increase as you load the output and >those >> > wimpy output transistors heat up due to ohmic losses. >> > >> > Conclusion: Use external FETs for the high side drivers, and >don't >> > expect it to work over a big temp range. >> > >> > -- >> > >> > --David Forbes, Tucson, AZ >> >> How about measuring what you actually get out or you'll never know >> now ! > >I should add that that's after I just measured an example of a >16f872. >I get 25mA through a 3.3V LED and 28mA when I short across the LED, >as quickly as my meter can respond and display 28mA the output is >shut of by internal protection (I assume). > >Chris Chris, Perhaps I'm being too conservative here. I tend to design circuits so that they are guaranteed to work over temperature and processes variations, with little change in the output value (brightness in this case). It's a habit I picked up from the embedded computer industry. I admit that the chip will drive 25 mA at room temperature if you don't care about the output voltage. However, the resistorless LED application is not something you'll find recommended by anyone who does this for a living! I'd recommend installing a series resistor and using that for a current meter, rather than placing a milliammeter across the chip's output pin to ground. It's easier on the chip, and a better way to test output voltage vs current draw. I'll do this test after I get my LEDs in hand and write some test code. -- --David Forbes, Tucson, AZ http://www.cathodecorner.com/ ________________________________________________________________________ ________________________________________________________________________ Message: 11 Date: Fri, 27 Feb 2004 21:56:42 -0000 From: "toomuchcoffee23" <toomuchcoffe...@yahoo.com> Subject: software for programmer i am thinking about realizing my next nixie - project with an 8048 controller, just to use components from (nearly) the same time. i have some 8748 and i found an old programmer with an add-on to program these controllers, too. but unfortunately the disk with the software is bad. maybe someone knows the device and can tell me where i can find the software: www.midian.de/nixie/eprommer_fairy.jpg -- klaus ________________________________________________________________________ ________________________________________________________________________ Message: 12 Date: Sat, 28 Feb 2004 00:27:44 -0000 From: "Chris" <fixit...@aol.com> Subject: Re: Lies in PICland --- In neonixi...@yahoogroups.com, David Forbes <dforbes@d...> wrote: > I'd recommend installing a series resistor and using that for a > current meter, rather than placing a milliammeter across the chip's > output pin to ground. It's easier on the chip, and a better way to > test output voltage vs current draw. > > I'll do this test after I get my LEDs in hand and write some test code. > > -- > > --David Forbes, Tucson, AZ > http://www.cathodecorner.com/ Good ! Then there's no need for me to do it if you insist on doing it. thanks ;-) ________________________________________________________________________ ________________________________________________________________________ Message: 13 Date: Sat, 28 Feb 2004 00:34:23 -0000 From: "Chris" <fixit...@aol.com> Subject: Re: New NMEA parser --- In neonixi...@yahoogroups.com, "J.C. Wren" <jcwren@j...> wrote: > You can always hardcode your house, your mom's house, or your > favorite repair shoppe. I'm not advocating storing waypoints as you go, > or anything like that, just 1 or 3 significant waypoints. Besides, > generally speaking, that information is more for entertainment purposes > than useful navigation. > > --jc > hhhmmmm....despite appearances, I haven't got the full gps bug , I don't think. So it's not a project I would wish to develop. But I agree it would make a great final year project for a budding student ! ________________________________________________________________________ ________________________________________________________________________ Message: 14 Date: Sat, 28 Feb 2004 05:48:36 -0000 From: "Sal Brisindi" <tubema...@yahoo.com> Subject: Re: More Nixie Patents Found --- In neonixi...@yahoogroups.com, "Peter J. Stonard" <pstonard@i...> wrote: ***snip*** > > (2) 2756366 Was assigned to National Union Electric Corp., makes 12 > claims, and describes the end view tube we know as an NU GI-21. Hand > formed wire numerals. Except to the NU GI-21 is that there is no > dedicated anode, the unlit cathodes form the anodes for the lit > numeral. > ****snip**** > Peter J. Stonard ***snip**** Peter, I happen to have a National Union NU GI-21 nixie tube. The glass is silvered a bit but the cathodes are noticable. The unique thing about this tube is the hand formed cathodes as you mentioned. I can light up the numbers and take photos of it if the you/the group wants me to. Regards, Sal Brisindi www.tuberadios.com ________________________________________________________________________ ________________________________________________________________________ Message: 15 Date: Sat, 28 Feb 2004 06:00:05 -0000 From: "James Drosopoulos" <jcd550...@aol.com> Subject: Radio Controlled Atomic Clock Found this ad for a Radio Controlled Atomic Clock. Seems something similar to the Heatkhit Most Accurate Clock. Could the receiver section form the basis of a very accurate timebase for a Nixie clock? Here's the URL. Any comments or ideas? Jim Jumbo Display Atomic Clock Radio Item: WW-3110 Price: $69.95 http://tinyurl.com/ypumk (they also have Atomic Digital Watches) ________________________________________________________________________ ________________________________________________________________________ Message: 16 Date: Sat, 28 Feb 2004 07:28:31 -0000 From: "Alan J. Franzman" <a.j.franz...@verizon.net> Subject: Re: More Nixie Patents Found --- In neonixi...@yahoogroups.com, "Sal Brisindi" <tubeman59@y...> wrote: > I happen to have a National Union NU GI-21 nixie tube. The glass > is silvered a bit but the cathodes are noticable. The unique thing > about this tube is the hand formed cathodes as you mentioned. I > can light up the numbers and take photos of it if the you/the > group wants me to. Sal, There are already GI-21 images in: Photo Albums > Nixie Tubes > Front Lit > Numeric- End View Photo Albums > Nixie Tubes > Front Unlit But if you wanted to show every digit we could give it its own subfolder. I seem to remember a side view uploaded by Peter Stonard but I can't find it now. The fancier of two styles of GI-21 boxes I have can be seen at: Photo Albums > Nixie Boxes A.J. ________________________________________________________________________ ________________________________________________________________________ Message: 17 Date: Sat, 28 Feb 2004 09:34:02 -0000 From: "Jorgen Lund-Nielsen" <dj...@web.de> Subject: Tho real atomic wristwatch, was: Radio Controlled Atomic Clock --- In neonixi...@yahoogroups.com, "James Drosopoulos" <JCD5505DL@A...> wrote: > > > Found this ad for a Radio Controlled Atomic Clock. Seems > something similar to the Heatkhit Most Accurate Clock. Could the > receiver section form the basis of a very accurate timebase for a > Nixie clock? Here's the URL. Any comments or ideas? > > Jim > > Jumbo Display Atomic Clock Radio Item: WW-3110 Price: $69.95 > > http://tinyurl.com/ypumk (they also have Atomic Digital Watches) Hello, those are all no real atomic clocks, look at the ONLY TRUE ATOMIC WRISTWATCH!!! ;-) http://www.leapsecond.com/pages/atomic-bill/index.htm Jorgen ________________________________________________________________________ ________________________________________________________________________ Message: 18 Date: Sat, 28 Feb 2004 09:54:51 -0000 From: "Chris" <fixit...@aol.com> Subject: Re: Radio Controlled Atomic Clock --- In neonixi...@yahoogroups.com, "James Drosopoulos" <JCD5505DL@A...> wrote: > > > Found this ad for a Radio Controlled Atomic Clock. Seems > something similar to the Heatkhit Most Accurate Clock. Could the > receiver section form the basis of a very accurate timebase for a > Nixie clock? Here's the URL. Any comments or ideas? > > Jim > My first (instinctive) comment - Wow , that's expensive ! There are far far cheaper versions of this type of clock available but, it's a good start. It may even be possible to convert the seven segment output display into a nixie display; as we saw in the past couple of days, if you want a 24hr display make sure the led's are actually fitted in the tens of hours position so that it can actually display 2's (Though I suspect they are as WWVB/MSF outputs are 24hrs) A couple of group memebrs were working on a receiver design for receiving these signals. The problem with the receivers they mass produce is that they generally aren't the most sensitive or selective. Once you have the receiver output then you need some further processing to extract the timecode and convert it into a format your clock can display....a bit like tuning into a radio station which might have a foreign speaking presenter - it still needs to be translated. There was a time when I might have said that that was a job best left upto a microcontroller, but Hans Summers' TTL logic decoder proves that anything is possible (and also that any Microcontroller version had better be really really good!) Rather than build your own receiver, or strip out an existing project, the third option is to buy the modules you need from a third party like Galleon. <http://www.galleon.eu.com/OEM-Receivers-MSF.htm> Those small modules work together to give serial output of the time data. This needs to be displayed somehow on your clock display, and you need to fill this gap with, again, either a microcontroller or some more of that legendary TTL. As I'm writing this I recall seeing a chip which was a combined receiver/decoder which needed very few extra components, still needs another interface to the display though. I'ld be interested in converting one of the existing LCD clocks, I have two, but haven't the time to write the software needed to convert either the 1PPS or the LCD display output signals to a type which can be easily displayed on nixies. Chris ________________________________________________________________________ ________________________________________________________________________ Message: 19 Date: Sat, 28 Feb 2004 10:06:11 -0000 From: "Chris" <fixit...@aol.com> Subject: Re: Tho real atomic wristwatch, was: Radio Controlled Atomic Clock --- In neonixi...@yahoogroups.com, "Jorgen Lund-Nielsen" <dj0ud@w...> wrote: > --- In neonixi...@yahoogroups.com, "James Drosopoulos" > <JCD5505DL@A...> wrote: > > > > > > those are all no real atomic clocks, > look at the ONLY TRUE ATOMIC WRISTWATCH!!! ;-) > > http://www.leapsecond.com/pages/atomic-bill/index.htm > > > Jorgen I've got a rubidium source here measuring less than 30mm x 7mm x 6mm. with built in photoreceptor. All I need is a miniature rubidium lamp, or 780nm led and I'll have the second true atomic wristwatch !! Chris ________________________________________________________________________ ________________________________________________________________________ To unsubscribe, click here: <mailto:neonixie-l-unsubscr...@yahoogroups.com> ------------------------------------------------------------------------ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/NEONIXIE-L/ <*> To unsubscribe from this group, send an email to: neonixie-l-unsubscr...@yahoogroups.com <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/ ------------------------------------------------------------------------ -- 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. 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