Re: [neonixie-l] Diving VFD such as IV-22 etc DC Vs AC Filament drive

You'll be fine with DC. If you can't see a visible difference in brightness across the tube then it probably doesn't matter. People say there are lifespan issues with DC but I haven't seen that yet on my VFD clocks. I just use DC and bias the grid ~ -3vdc. On Thu, Jun 15, 2023, 10:45 PM Richard Sc

Re: [neonixie-l] Prices, seriously?

Wait seriously $55 for IN-14? I'm going to sell of my stash and plan a European vacation... On Fri, Jun 11, 2021, 12:39 PM Bill Notfaded wrote: > 55$ for an IN-14... geesh! It's fine grid but what? > > Bill > > On Thursday, June 10, 2021 at 2:24:48 PM UTC-7 nickja...@gmail.com wrote: > >> Good

Re: [neonixie-l] Nixie film appearance - Chernobyl miniseries

I think they are IN-8. I have a clock made with them right next to my television and it was a nice coincidence. -w7qi On Fri, Jun 7, 2019, 2:09 PM Kevin A. wrote: > I've been watching the HBO miniseries about Chernobyl (which is very > entertaining without disrespecting most of the facts). With

Re: [neonixie-l] Re: IN-18 new for sale

$45 each is the type of great price most folks wont mind hearing. That's a 2005 price. I'll contact off list, I've never bought in-18s but always wanted some for a clock. Side view nixies are silly expensive nowadays if you don't already have boxes of them. -w7qi On Tue, Apr 23, 2019, 5:09 AM

RE: [neonixie-l] Ham radios with Nixies?

I would be more tempted to find a user radio and add a digital nixie frequency display. Any old user Swan, for example. -W7QI -Original Message- From: "Jonathan Peakall" Sent: ‎5/‎31/‎2015 1:26 PM To: "neonixie-l@googlegroups.com" Subject: [neonixie-l] Ham radios with Nixies? Hi All,

Re: [neonixie-l] Your message in neonixie-l was denied

Thanks, Nick! My apologies for asking a question already answered. -Adam On 4/11/2014 7:17 AM, Nick wrote: Read the group! I posted about this earlier today... it's a cunning type of SPAM that purports to come from the group itself, therefore cannot be marked as SPAM else the group would ban i

Re: [neonixie-l] Your message in neonixie-l was denied

Is everyone getting these, or just me? -Adam On 4/10/2014 10:01 PM, neonixie-l+nore...@googlegroups.com wrote: neonixie-l Google Groups Logo for Google Groups Unfort

Re: [neonixie-l] Inkjet printable conductive ink

Kind of reminds me of back when I was a kid, my dad worked for a startup called 'Ariel Electronics'. They had a 2-dimensional circuit plotter that was pretty neat back around 1990 or so. -Adam On 3/27/2014 2:06 PM, Michel wrote: Hello guys, I just came across this kickstarter project and I d

Re: [neonixie-l] Erratic Harrison clock

I can tell you that if you want to advance one of these clocks in your house hours at a time by remote control, all you need to do is work some CW in the basement. :D -Adam On 3/17/2014 2:38 AM, Nick wrote: Being fair, this clock was designed a long long time ago when stuff directly connected

Re: [neonixie-l] Help with upgrading my soldering iron

It really depends on what you're doing as far as if a metcal would be worth it or not... but I'm thinking that if you have to ask for recommendations then you don't need one. I'm a real fan of Weller soldering irons. I've had a blue handled Weller for nearly my whole life and it never steered

Re: [neonixie-l] IN-18 gone bad.

This is an issue that is most obvious on clocks with lots of functionality. If there are different modes/menus that display numerals on a tube that are not normally lit as part of the clock, then you'll see this. Best advice is to take full advantage of automated cathode-poisoning prevention

Re: [neonixie-l] Re: resistance of filament warm vs cold

2013 02:44, Adam Jacobs <mailto:a...@jacobs.us>> wrote: Yes, but why use enamel coated wire in the first place? I've only ever used it for winding inductors and transformers. I hate the stuff. Dipping in molten solder usually works to remove the enamel, with a

Re: [neonixie-l] Re: resistance of filament warm vs cold

Yes, but why use enamel coated wire in the first place? I've only ever used it for winding inductors and transformers. I hate the stuff. Dipping in molten solder usually works to remove the enamel, with a clean-up pass using sandpaper. My favorite protoboard wire is the old 80-wire PATA ribbon cabl

Re: [neonixie-l] resistance of filament warm vs cold

a incandescent filament...) I would still always run it though a bench PSU with a current limit set, then just play with some resistors (or a wire wound pot / rheostat) until the figures work out... - Alex On Friday, 6 December 2013 19:41:13 UTC, Adam Jacobs wrote: Hi Gideon, You

Re: [neonixie-l] resistance of filament warm vs cold

this on my phone but i do not think your formula is going to work. R_1 is before and after the = sign. I will look at it tomorrow morning Op 6 dec. 2013 20:41 schreef "Adam Jacobs" <mailto:jacobs.a...@gmail.com>>: Hi Gideon, Ā You're doing it wrong. :)

Re: [neonixie-l] resistance of filament warm vs cold

Hi Gideon, You're doing it wrong. :) We do not normally refer to filaments by their impedance, but rather by their power draw. What is the equivalent resistor value of a 100watt incandescent lightbulb? There isn't one, because filaments and resistors behave differently. For starters, a filame

Re: [neonixie-l] How to get IV-11 VFD tubes properly aligned on protoboard

Yep, exactly. I can take a picture of how I place them, but basically it ends up being a sort of square or rectangle. I leave about a centimeter of lead above the protoboard so that the tube can be gently twisted the right way. -Adam On 12/4/2013 2:26 PM, David Forbes wrote: Gideon, The wir

Re: [neonixie-l] Nixie tube plastic spacers needed.

B. No way I will use the IN8 pins, That's the whole reason I opted for IN8-2. Thanks for your input. I appreciate it! Chris On Tuesday, November 26, 2013 11:12:11 AM UTC-7, Adam Jacobs wrote: Well, Sure, minus the upside down 2 for a 5. :) But plus the

Re: [neonixie-l] Nixie tube plastic spacers needed.

Well, Sure, minus the upside down 2 for a 5. :) But plus the HORRIBLE 4 numeral. I like the 5's in the IN-8-2's, but the 4's are bad enough that I switched back to IN-14's back in the day. Now, neither of those nixie tubes are cheap enough for me to use in new designs. All of my stockpile of I

Re: [neonixie-l] Re: Arduino and MAX6921

Time-setting as well as time-getting and displaying will need to be done on the Microcontroller. The RTC relies on receiving an I2C message with the time to set; it doesn't have any mechanism for connecting buttons or such directly. 'find out whether this is going to work' is probably something

Re: [neonixie-l] Re: Arduino and MAX6921

Hi David, I used to think it was strange too and always included the clock functionality in the microcontroller. However, I was always fine-tuning the accuracy. I believe that someone was posting to this list a little while back about his own Atmel microcontroller clock-code accuracy issues.

Re: [neonixie-l] Arduino and MAX6921

ther look at it and maybe a friend of mine who is a lot better at written programming languages can help me a bit. Op donderdag 21 november 2013 21:47:33 UTC+1 schreef Adam Jacobs: Hi Gideon, What are you studying at university? We're starting to get to the point where you sh

Re: [neonixie-l] Arduino and MAX6921

Hi Gideon, What are you studying at university? We're starting to get to the point where you should be able to start figuring it out. Definitely shouldn't look like voodoo... Start with the Datasheet: http://datasheets.maximintegrated.com/en/ds/MAX6921-MAX6931.pdf The datasheet tells us tha

Re: [neonixie-l] Re: IV-11 VFD clock, some questions

Congratulations! I've always been a big fan of Maxim's sampling policy. I've even abused it (obviously, since I have a drawer-full of their stuff). The only times that I've had them object to any part of a sample request, I was requesting DIP samples. Anything PLCC or surface mount, they're ul

Re: [neonixie-l] IV-11 VFD clock, some questions

other point is that the max6921 costs around 6-7 dollar a piece +1 euro for a plcc socket, I am trying to keep the costs down a bit. So a method to avoid using these drivers is preferred. HV5812: cheap but shipping costs are 40-50 dollar MAX6921 expensive and/or high shipping costs Op dinsdag

Re: [neonixie-l] IV-11 VFD clock, some questions

FYI David: On the clock that I built with IV-11 tubes, I initially started with an anode voltage of 60v; which is the median multiplexed voltage as per this datasheet: http://www.tromop.eu/cms/media/IV-11%20datasheet.pdf and a 1/6 duty cycle (16.67%). That clock was bright. Couldn't sleep in

Re: [neonixie-l] IV-11 VFD clock, some questions

Hi Gideon, I think that you have some confusion regarding how VFDs are driven. VFDs are not nixie tubes or anything even similar. Nixies are not vacuum tubes, they are cold-cathode (neon) tubes. With nixies, we place ~180vdc across the anode & cathode via a current-limiting resistor. The reaso

Re: [neonixie-l] BAD DEKATRON SELLER "fruwlo" (Irina Bashkevich) on eBay

You definitely need to know where your deadlines are in any legal disagreement. Learn them, write them down, and be happy that you didn't lose more than $40. -Adam On 11/15/2013 11:35 AM, Dylan Distasio wrote: Jon- If you paid with PayPal, have you opened a separate case with them? I rea

Re: [neonixie-l] Atmel clock/timer projects

Awesome work! I'll look at your code and see about patching some of my built clocks... -Adam On 11/4/2013 11:26 PM, NeonJohn wrote: Thanks to TVB who gave me a gentle nudge in the direction of measuring instead of relying on the data sheet, my timer is working perfectly. The data sheet formula

Re: [neonixie-l] Atmel clock/timer projects

Yep, this is the way that I ended up doing it in my ATTiny2313 clocks. It works better than CTC timer, but it still had the same kinds of problems for me. (to a lesser severity) -Adam On 11/4/2013 4:57 PM, NeonJohn wrote: On 11/04/2013 07:00 PM, Frank Bemelman wrote: Assume you have an int

Re: [neonixie-l] Atmel clock/timer projects

Hi John, I haven't done anything with AVR chips in a couple of years now, but I can only add that I've felt your pain. I built a lot of clocks using AVR parts, in a variety of designs and with a variety of AVR chips... and they all had strange repeatable timer issues. I do think that the AVR

Re: [neonixie-l] HV Power Supply Reverse Engineer

Holy cow... an automotive DC/AC inverter for 1 penny? I'm not as brave as this man, not by a long shot. Every crazy cheap powersupply I've ever bought from China was a fire hazard. I have to assume that this thing is also a fire hazard. :) -73 Adam W7QI On 10/10/2013 2:15 PM, Jonathan Peakall

Re: [neonixie-l] Re: New power supply design

... the end of the list?!? I've got items on the end of my to-do list that have been there for years and years. The most frequent way that items on the end of my list resolve themselves is by becoming obsolete/irrelevant. ;) Nah, the key is to knock out one or two of the items that she wants d

Re: [neonixie-l] Re: bespoke case

Perhaps it is a feature? I can kind of see a new coined phrase "jelly-bean capitalization". -Adam On 5/17/2013 5:07 PM, pewter wrote: To Those That Queried Capitalising The First Letter Of Each Word. This Had Happened Since MY Phone Updated To Jelly Bean. It Only Happens With Some Applicat

Re: [neonixie-l] Re: Fascinating ebay sale ... apparently IN-18 production gear!

It does look like mostly a giant pile of junk... and I agree, there is no telling how many IN-18's are left in the cartel's secret hoard. One thing is for certain: Although every other nixie tube price continues to increase, the IN-18 has stayed bizarrely stable. -Adam On Sat, May 11, 2013 at 4:

Re: [neonixie-l] Re: Fascinating ebay sale ... apparently IN-18 production gear!

There definitely has to be a very limited sort of customer base for an auction such as this one. Kind of reminds me of the Polaroid film "Impossible Project" people.. They bought the old factory, all of the equipment, and even hired back a ton of the employees. I'm still floored that there is

Re: [neonixie-l] Re: bespoke case

inus their 6581 SID. -Adam On 5/7/2013 10:15 AM, Nicholas Stock wrote: I loved the C64...I still play some games (using an emulator) occasionally on my Macwww.c64.com <http://www.c64.com> has all the games from yesteryears.ah, memories. On Tue, May 7, 2013 at 10:14

Re: [neonixie-l] Re: bespoke case

MY FAVORITE IS TO POST AS THOUGH TYPING ON A COMMODORE 64. THERE WAS A TIME WHEN A BBS POST FROM A C64 WAS INSTANTLY RECOGNIZABLE AS SUCH. OH, THE GOOD OLD DAYS. On 5/7/2013 10:01 AM, Nick wrote: Spelling & grammar police not welcome here! Having said that, it's a weird way of posting. Certainl

Re: [neonixie-l] Re: bespoke case

Great Question! I Also Wondered About Such A Thing. On 5/7/2013 4:54 AM, Terry S wrote: What Prompts A Person To Capitaize The First Letter Of Each Word They Write? On May 7, 4:06 am, pewter wrote: Has Anyone Had Any Experience And/Or Can Offer Help Regarding Getting Case Parts Cut, From Per

Re: [neonixie-l] Re: Where it all started for me.....

ypted network at home, so that's not the issue;-) That's a funny link though! Thanks for sharing.. On Mon, May 6, 2013 at 8:16 AM, Adam Jacobs <mailto:jacobs.a...@gmail.com>> wrote: Is it possible that you are piggy-backing somebody else's wi-fi, Nick? So

Re: [neonixie-l] Re: Where it all started for me.....

Is it possible that you are piggy-backing somebody else's wi-fi, Nick? Sounds like you might be on the Upside-Down-Ternet... http://www.ex-parrot.com/pete/upside-down-ternet.html -Adam On 5/6/2013 8:14 AM, Nicholas Stock wrote: Did the picture open upside down? I just noticed at my work comput

Re: [neonixie-l] Re: Sidelit displays - Wales UK

I was trying to explain this phenomena to a Canadian friend of mine. Guns are a cultural thing in the US. If you're not originally from here, it may not be something that makes a lot of sense... but it's just part of normal. I own some guns as well. Most americans I know own guns. My Canadian frien

Re: [neonixie-l] Re: Sourcing Large Quantities of 5870s Nixies

f) the project kicks the price of the IN12's will raise to IN18's levels... Just seeing the IN14 prices skyrocket is enough... Gaston On Wednesday, March 13, 2013 5:55:18 PM UTC-3, Adam Jacobs wrote: I think that (based on the current supply of nixies), if I was to design and

Re: [neonixie-l] Re: Sourcing Large Quantities of 5870s Nixies

I think that (based on the current supply of nixies), if I was to design and build a new clock right now I would use IN-12's. -Adam On 3/13/2013 1:44 PM, Nicholas Stock wrote: The one nixie clock I've seen on Kickstarter took a different angle on things... http://www.ramosclock.com/products/

Re: [neonixie-l] Re: Sourcing Large Quantities of 5870s Nixies

I like 4-digit clocks as well as 6-digit. Nerds tend to like their 6-digit clocks, it is nice to see the numbers changing. Spouses tend to like the 4-digit versions better, in my experience. I own both types and have built both types. I like both types. :) -Adam On 3/13/2013 11:41 AM, kay486

Re: [neonixie-l] Sourcing Large Quantities of 5870s Nixies

Is a 1970's nixie clock design really the best idea in this day and age? I mean, unless there is something really neat going on with the industrial design? Electronics have come a long way since then. a Nixie clock built using TTL logic is probably not the most cost-effective (or feature complet

Re: [neonixie-l] One Z568M NIB for sale with problem

But it's a _cool_ tube, right? An enterprising engineer should be able to figure out a use case where you never use the number "1" maybe, anyways. Possibly if you mux the "1", maybe it takes longer to get hot enough to bend into the 8? who knows. Anyways, point was: never underestimate col

Re: [neonixie-l] Re: NL7094 is a myth!

Well, it's never too late to become a radio amateur! With the removal of the morse code requirement for all license classes, it's really just a practical engineering written test. A fairly simple one at that. Really, it is a little sad to say that a ham radio license doesn't imply the same leve

Re: [neonixie-l] Re: NL7094 is a myth!

That is one cool power tetrode you've got there, Nick. The datasheet alone would make me want to build a linear amplifier around it if I had one. 500w CW at up to 60mhz and 335w to 175mhz? I have no idea how difficult it is to tame the self-oscillations at the higher frequencies on that tube, b

Re: [neonixie-l] Re: GeekKlok, FLW data to be in Public Domain

Wow, that's a lot of venom, whoever you are. Take it to a private email, this list is not the appropriate venue. On Sat, Feb 16, 2013 at 7:45 AM, Jonathan Peakall wrote: > Respect? For the guy who is a known thief? Ray is the definition of > chutzpa, killing his parents and then begging for mer

Re: [neonixie-l] Re: GeekKlok, FLW data to be in Public Domain

Comments like this one should have been made in private, I think. Sorry, didn't mean to feed the troll. :S -Adam On 2/15/2013 1:55 PM, Greg P wrote: C'mon Ray, what's taking so long, it's been almost 2 months. I guess it's another failed promise. On Dec 31 2012, 2:32 am, MichaelB wrote:

Re: [neonixie-l] Re: Bruce Nauman exhibition in London

Words to live by. On 2/5/2013 3:15 PM, Terry S wrote: Sorry, I don't click on any link with "mindfuck" in it. On Feb 5, 4:49 pm, Nick wrote: For lovers of neon art, Brucw Nauman has an (adult) exhibition on in London at Hauser & Wirth in Savile Row until March 13th... http://m.hauserwirth.c

Re: [neonixie-l] Piezo amp

Make sure that you are driving the piezo at the frequency that the datasheet specifies. Piezo buzzers are resonant in a specific frequency range. If you are outside of that range, they will under perform. -Adam On 1/15/2013 9:37 AM, Imbanon wrote: Hiya everyone! Does anyone have any simple s

Re: [neonixie-l] Re: Nixie watch on TV

It was neat to see how proud he (woz) was of his nixie watch when I met him. Woz seems like the kind of nerd that gets excited about good electronics designs. I suppose that is where the Apple came from, after all. -Adam On 1/2/2013 12:49 PM, Michel wrote: The Woz will soon wear my version of

Re: [neonixie-l] Re: GeekKlok and FLW up for grabs

I don't have any stake in the Ray story... Wasn't around back then, never paid any money, never expected any product, etc.. The ensuing drama is nothing more than an interesting story to me.. Entertainment, as it were. I'd like to second the recommendation that the FLW design be given to the

Re: [neonixie-l] Re: IN-9's for sale

I found this at radiomuseum.org: 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 pi

Re: [neonixie-l] Re: IN-9's for sale

Not mine either. USMail has free boxes if you ship priority, which you should be able to do for about $5. Padded envelopes would arrive to me filled with glass shards. :) -Adam On Wed, Nov 28, 2012 at 5:16 AM, Terry S wrote: > Padded envelope? They would never survive my mail carrier. > > On N

Re: [neonixie-l] Harwell Computer

.. with 828 total dekatrons, maybe "a few replacements and spares" _IS_ a whole complement of tubes. -Adam On 11/20/2012 7:24 AM, JohnK wrote: That is what I remember hearing. I offered them tubes on their list and a lead on the trigger tubes they needed - got the intial discussion and then n

Re: [neonixie-l] Ramsey kits

Order from ramsey with caution. It takes them an unbelievably long time to get around to shipping anything (think on the order of a month).. their shipping rates are very expensive, and their kits often come with incorrect parts. The good news is that they'll work with you to send you the right

[neonixie-l] Lithium battery holder part for eaglecad?

Does anyone have an eaglecad part for a lithium battery holder? I'm thinking one of the small 3v types like the CR2 or CR123 or really anything that is 3v and not a coin cell. I'm not good enough in eaglecad yet to trust myself to make a custom part, I figure somebody must have done this alread

Re: [neonixie-l] Re: Second Scope Clock

Thanks for the timely explanation of your process, I was just about to head down this road of printing my first single sided boards at home. Any recommendations for a first timer? I do have a laserjet 4 already. :) (and a somewhat newer laser printer as well). I have experience in film developin

Re: [neonixie-l] Re: Nixie watch case update

Steve Wozniak looked pretty pleased with his when he was showing it to me. -Adam On Wed, Nov 7, 2012 at 4:16 PM, J Forbes wrote: > THis doesn't seem to reflect reality.at least the reality of myself > and the others I know who own David's nixie watches. > > > On Wednesday, November 7, 2012

Re: [neonixie-l] Projection displays hidden in big ebay load - stockport UK

I wonder how much of it works? I think that he should rename the auction: "Need a new hobby? Try this one! LEARN TO REPAIR TUBE OSCILLOSCOPES AND MISCELLANEOUS TEST EQUIPMENT in your spare time! (Caution: This auction requires but does not include a large self-storage unit. Divorce attorney o

Re: [neonixie-l] LC-531 and SN74141 problem

Hello, You should not place a linear regulator (7809) between the transformer and the boost switching supply. Go ahead and remove it. The only components I would place between the transformer and the input to the high voltage supply are maybe a 1n4007 protection diode and one or two bypass c

Re: [neonixie-l] LC-531 and SN74141 problem

There is a chance that you have a bad 74141. I would try disconnecting the 74141 inputs from your uC and try grounding them all. Does everything turn off? try pull one of the inputs high and verify that the correct number is lit. I'd do this before proceeding. If the 74141/Nixie circuit works fi

Re: [neonixie-l] Very cool Nixie!

I love it! It brings to mind the old fashioned art of electronics prior to the PCB. I think that I would need to practice with making some much smaller circuits before attempting something like this. Great design. -Adam On Sun, Oct 14, 2012 at 11:12 AM, MichaelB wrote: > http://www.youtube.com/

Re: [neonixie-l] Re: (OT) Ics needed..(they drive the orange glow...)

Probably not as vulnerable as single sideband. :S Are you sure that it is the multiplexed nixies and not the switching supply? I'm just curious at this point, I've always assumed that the rapid ionization/de-ionization of the neon would create some RF noise, but no real idea. When I built my W

Re: [neonixie-l] Re: (OT) Ics needed..(they drive the orange glow...)

Somehow I missed the part where they're full power on the 6m band and partial power on 2m. Sounds like some nice finals to me. -Adam W7QI On 10/3/2012 4:05 PM, Adam Jacobs wrote: WOW! Who's complaining? Build yourself a nice little CW transceiver or linear amplifier. Those old powe

Re: [neonixie-l] Re: (OT) Ics needed..(they drive the orange glow...)

WOW! Who's complaining? Build yourself a nice little CW transceiver or linear amplifier. Those old power pentodes are getting scarce. :( -Adam On 10/3/2012 1:50 PM, Charles MacDonald wrote: On 12-10-03 11:30 AM, jb-electronics wrote: About 10 years ago I bough two NIB 7094s for about USD 5 !

Re: [neonixie-l] Re: Why is multiplexing nixie's bad

I believe that the "singing" issue is primarily a problem with larger nixie tubes, of which I have no (as of yet) experience. I've never had a problem with singing tubes with IN-12, IN-14, IN-8, IN-8-2, IN-16, IN-17 tubes.. but these are pretty small tubes (18mm digit height or less). never had

Re: [neonixie-l] Re: Why is multiplexing nixie's bad

I've also seen hot-glue used, especially if the potting is to lower RF noise. I'm a big fan of hot glue. I don't know where I first heard the expression "Non-conductive solder", but I've latched onto it happily. I also like that it easily dissolves in acetone. -Adam On 9/20/2012 6:33 PM, Terry

Re: [neonixie-l] Re: Why is multiplexing nixie's bad

That was my point, really, I was trying to stay in the same reference frame as your post. Given equal cathode current in both cases, the multiplexed device will have lower brightness and greater tube life. Given equal cathode current, the direct driven device will have higher brightness and red

Re: [neonixie-l] Re: Why is multiplexing nixie's bad

I've definitely used a few inductors that buzzed nastily before. The sound of a coil contracting around a ferrite repeatedly. That's one advantage of using one of those ugly acrylic box cases. :) Great at noise dampening. -Adam On 9/20/2012 11:24 AM, jb-electronics wrote: Hi there, On Thu,

Re: [neonixie-l] Re: Why is multiplexing nixie's bad

You forgot the other pro's: - reduced power consumption - dramatically increased tube life at equal cathode current. -- The point is that there isn't a "right" answer or a religious opinion. To multiplex or not is really a design decision which should be made based on your product requiremen

Re: [neonixie-l] Why is multiplexing nixie's bad

For in the bedroom, I find the 1x6 mux (at standard current) to be of acceptable brightness. On the contrary, a 1x6 mux VFD clock that I built is _way_ too bright for the house (like you can't sleep for the blue glow). I took the VFD clock to the office and it looks fine there. Relative brightness

Re: [neonixie-l] Why is multiplexing nixie's bad

I don't think that multiplexing is a bad idea.. On the contrary, it should extend the life (provided that you don't drive the tubes at more current than they are rated for). That's the key, really.. I think that most people drive the tubes at significantly higher than rated currents when they multi

Re: [neonixie-l] IN-13 Spectrum analyzer

Mind sharing the component part number? On 9/19/2012 2:41 PM, Dan Foster wrote: As for why 7 channels, I found a little IC that breaks down audio into DC components (7 to be exact). I have found a fft that runs on AVR microcontrollers but am not sure of its accuracy or how quick it is. So for

Re: [neonixie-l] IN-13 Spectrum analyzer

2:31 PM, Nicholas Stock wrote: Ascending and descending orange glow tubes, why wouldn't it sell! I'd probably tinker with one...;-) Why only 7 channels? May I ask what frequency ranges you decided to sample? Nick On Wed, Sep 19, 2012 at 2:28 PM, Adam Jacobs <mailto:a...

Re: [neonixie-l] IN-13 Spectrum analyzer

Pretty neat. As an audiophile toy, I suspect that it would sell well. Something to put on top of that all-tube amplifier. -Adam On 9/19/2012 2:02 PM, Dan Foster wrote: Hello everyone, I am thinking of selling a IN-13 spectrum analyzer, either fully assembled or in kit form. I've just ordered

[neonixie-l] Supertex?

I recall a long while back, people were looking into the feasibility of using various Supertex parts for driving Nixies. Can anyone comment on their findings? Thanks, -Adam -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group,

Re: [neonixie-l] Re: How necessary are sockets?

Additionally, finding the real sockets to the tubes can be easier said than done. Some sockets are common, others are like hen's teeth.. -Adam On 9/11/2012 11:38 AM, jb-electronics wrote: Yep. Sounds like it would be easier to just get the sockets if I can find them... It depends on your a

Re: [neonixie-l] Wanted - a quantity of faulty B7971s

I was thinking of that as well... What is the voltage needed to cause ionization in air? -Adam On 9/4/2012 11:48 AM, John Rehwinkel wrote: I'm mostly interested in tubes with missing segments but would consider hard to start as well as they may do what I need. Cracked or gassy are no use - it

Re: [neonixie-l] Re: My new Scope Clock site, Oscilloclock.com

Wow, this is great! Very timely, too! I just found a nice little scope tube at a swapmeet for $1 the other day, looks like I've got no excuse to not light it up now. Thanks again. -Adam W7QI On Mon, Sep 3, 2012 at 3:07 PM, Michel wrote: > That is really nice, the characters look so much better

Re: [neonixie-l] eBay Warning on B7871 Tubes auction.

neers that offer legal advice without law degrees. -Adam On 8/31/2012 11:08 AM, Adam Jacobs wrote: Correct, small claims must be filed in the state of the merchant/seller. However, most states/municipalities will allow filing by affidavit if you don't live there. Call the Philadelphia

Re: [neonixie-l] eBay Warning on B7871 Tubes auction.

Correct, small claims must be filed in the state of the merchant/seller. However, most states/municipalities will allow filing by affidavit if you don't live there. Call the Philadelphia municipal courthouse and ask for their information packet regarding filing small claims from out of state. I

Re: [neonixie-l] eBay Warning on B7871 Tubes auction.

Michail, Was this seller a domestic (USA) seller? If so, then you can normally sue for your damages in small claims by affidavit. If they're a ukrainian seller... well, good luck. -Adam On 8/31/2012 8:49 AM, micha...@aol.com wrote: The first videos are here. http://www.youtube.com/user/mich

Re: [neonixie-l] Re: RS232 line driver

That is a neat part, too bad that it is no longer in production. Looks like Components Direct sells them individually. http://www.componentsdirect.com/maxim-ds275-pdip-8-package-rs-232-transceiver.html I'm not sure that I would start a new design for manufacture with them, though. -Adam On

Re: [neonixie-l] Design my own Nixie Clock?

Not to say that the reed switches aren't cool and all (I've got some I built that way), but overall, it can be a hassle to try to find the magnet before you set your clock.. and it is trickier as well. -Adam On 8/23/2012 12:19 PM, Quixotic Nixotic wrote: On 15 Aug 2012, at 00:1

Re: [neonixie-l] Design my own Nixie Clock?

I built a clock around the 6-digit version of this chip... and then I was so impresesed with it, I built another with the 4-digit version. It is a _very_ well designed nixie clock chip. Moses clearly put a lot of work into polishing the design. -Adam On 8/16/2012 10:01 AM, westdave wrote: htt

Re: [neonixie-l] Re: Design my own Nixie Clock?

I agree with one of the other posters... I think that the best place to start is with an existing design. There are tons available on the internet, you can order parts from mouser.com -Adam On 8/16/2012 9:36 AM, Frederick Heald wrote: Just curious - why not build a "kit" clock or two to get s

Re: [neonixie-l] Re: Design my own Nixie Clock?

Also, I should add This is the reason that there is such a thing as a "User Interface Engineer". ;) On 8/15/2012 4:05 PM, chuck richards wrote: That is why I vastly prefer the straight 24-hour only version of this circuit. It has simpler logic, one less gate package, and when you are done

Re: [neonixie-l] Re: Design my own Nixie Clock?

... and my wife thinks that _MY_ clocks are tricky to set! On 8/15/2012 3:54 PM, chuck richards wrote: On the 12/24 selectable version of the '160 clock, when it is in 12-hour mode, the thumbwheels must be left preset for 0100. Then, as David said, it loads that after 12:59:59 Chuck Ori

Re: [neonixie-l] Re: Design my own Nixie Clock?

Sparkfun isn't bad. Also Limor Fried (ladyada)'s site: http://www.adafruit.com Limor is a member of this group and a great person to deal with. Radio Shack... They're trying to make a comeback into this area of retail, time will tell if they succeed. My experience has been that they cost about

Re: [neonixie-l] Re: Design my own Nixie Clock?

I use processors and this doesn't seem elementary to me! I wouldn't say that a microcontroller is more difficult to use than straight logic. On the contrary, I always refer to my penchant for using microcontrollers as "cheating".. or the software engineer's way out: "Only design enough electron

Re: [neonixie-l] Design my own Nixie Clock?

Hi Sean, If it was me, I'd probably start with the designs that don't use a microcontroller. There are lots of all-logic designs out there, here is the famous one: http://www.electricstuff.co.uk/nixclock.html Start out by studying existing circuit designs. Also, you might want to invest in

Re: [neonixie-l] Re: High Voltage from 9V battery trick

Thanks for the education, David! -Adam On 8/14/2012 8:23 AM, David Forbes wrote: On 8/14/12 8:17 AM, Adam Jacobs wrote: That's a good idea, especially if you can get them for cheap. I think the 2032 might even have a higher maximum current draw than the 9v. (Probably a lot less total

Re: [neonixie-l] Re: High Voltage from 9V battery trick

That's a good idea, especially if you can get them for cheap. I think the 2032 might even have a higher maximum current draw than the 9v. (Probably a lot less total power, though). Do they make lithium 2032's? I guess that would spoil the point of "cheap", though. How about silver oxide 357 ce

Re: [neonixie-l] High Voltage from 9V battery trick

I think that I've probably separated a few 9v that kids snapped together as well. They just look so doggone tempting. http://boards.straightdope.com/sdmb/showthread.php?t=304704 -Adam On 8/10/2012 1:57 PM, David Forbes wrote: On 8/10/12 11:26 AM, Frank Bemelman wrote: Why fiddle with problem

Re: [neonixie-l] High Voltage from 9V battery trick

This is actually common practice in circles that use mobile vacuum tube radios. Placing a stack of 9-volt batteries in series (which are themselves, actually a stack of 1.5v cells in series) to create a modern "B" battery. This works fine, since the "B" battery is a low current draw supply. -

Re: [neonixie-l] Re: Using a standard cell phone charger (USB) as power supply for Nixie project

One more thing, that I'm always repeating If you find yourself needing an obscure item from an obscure manufacturer that is not sold by digikey or mouser, don't be afraid to call up the manufacturer and ask for a sample. They won't sell it to you directly (probably.. unless you want 50,000 of t

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