[neonixie-l] Re: MCU religious wars (OT?)

I like Arduinos, and I also still program AVRs in assembly. I see Arduinos as nice trainers, and also a way to make a quick-n-dirty "smart" project. Love the libraries ! I have a hierarchy of pain, when it comes to deciding to do a task in assembly, or use a high level language, like C. Based m

[neonixie-l] Re: Pixie thermometer question

I'd get rid of the 1Ks, and go directly. They are powered, from the same 5V supply ? Unterminated TTL inputs float to ~1.6V, look like an "iffy" logic-1. To drag them down to solid logic-0 (0.8V min) requires a "sink" current of 1.6mA for old standard TTL. A 1K is too big. Unused TTL inputs are

[neonixie-l] OT: All Tube Color Organ

Not just being enamored with nixies, and dekatrons, but tubes in general. At least they're gas filled thyratrons. Not a display tube, but they can control some pretty bright light emitters (light bulbs), in the form of a color organ. Of course, I'm not the first to do this. There's a project ar

[neonixie-l] Re: One Tube Nimo Clock

On Wednesday, January 3, 2018 at 7:01:23 AM UTC-8, Nick wrote: > > Interesting! I have a bunch of IEE 6000-31-s that need a use, as well > as some XM1000s and BA -P31s. Big problem s the holders... > > These are all P31 phosphors - green or yellow-green see > http://www.bunkerofdoom.com/t

[neonixie-l] Re: One Tube Nimo Clock

On Tuesday, January 2, 2018 at 5:45:22 AM UTC-8, Paul Andrews wrote: > > That dock is calling to me. > In my infinite laziness, delaying finishing it, that dock spent a year looking like:

[neonixie-l] Re: OT: Vacuum Tube Projects?

> * by useful i mean something you could use for a purpose and not just a > construction to decorate a shelf. > You mean functioning ? I have a tube project, in the queue, that's visual, so its decorative, yet the tubes are functioning as designed. Its a tube color organ. I've been bothered

[neonixie-l] Re: One Tube Nimo Clock

On Thursday, December 28, 2017 at 3:45:19 AM UTC-8, Dekatron42 wrote: > > > Will this circuit work just as well with the Telefunken XM1000? > > /Martin > Mostly, yes, with minor adjustments. Those being different basing and pinout. 1.5V, 120mA (XM1000) heater versus 1.1V, 200mA (Nimo) heater.

[neonixie-l] One Tube Nimo Clock

A couple of months ago, Westdave & I ran across this youtube video: https://youtu.be/xmWg7CtN0Ac Dave had a small stash of Nimo tubes, and had given me one, a couple of years earlier. That video, started us thinking about doing something with those tubes. In the meantime, A.J. Franzman showed u

[neonixie-l] Re: other uses for nixies

Me too. Mine would also use a dual-slope ADC, like many early digital voltmeters. A plus for, non-clock projects, is that you can use the shorter live (non-mercury) nixies for such products, if they are to be On, only for relatively short periods. On Thursday, December 21, 2017 at 1:02:26 PM U

[neonixie-l] Re: other uses for nixies

On Thursday, December 21, 2017 at 3:09:33 PM UTC-8, Allen Dutra wrote: > > Go all the way and do an neon oscilloscope Greg. We believe in you! :) > > One of the early "Grid" computer models, had a dot matrix neon display. So if you find one of those, you can make a digital o-scope ! -- You re

[neonixie-l] Re: all my Nixie tubes are dying :(

> > What kind of sockets are used ? I don't like using those socket pins that soldered directly into the PCB, with glass based tubes. Okay for older style octal based tubes. I like the pins to float. Especially for pricier tubes, like IN-18s. Could be losing gas. -- You received this messa

[neonixie-l] Couple More Arduino Dekatron Sketches

I added 3 more sketches. Two use an analog input, and turns the dekatron into a gauge/meter/magic eye. The other is a modification of Paul Andrew's clock. It's stand alone, with the hours and minutes adjustable thru two push button switches. Also different, from his, is that the dekatron only s

[neonixie-l] Re: Weird spot on XN-11 Anode

Very likely, the infamous "blue dot". The unused cathodes are clamped to 62V. I believe those unused cathodes, at that potential work somewhat like the beam plates, in beam power tubes, like the 6L6. The blue, at or near an anode, seems dependent on current density. The greater it is the more l

[neonixie-l] Re: tubes/valves and Global Shipping

eBay's Global Shipping Program is a big stinking turd. I never use it, and never will ! Be glad they won't ship tubes. Their employees, besides being under educated, are probably poorly trained, if at all. I wouldn't trust them to properly pack 1/2" steel plate. They'll manage to break it. Pack

[neonixie-l] Re: Shameless Plug: Arduino Shield for a Dekatron

Just occurred to me, that hours may be a bit weird. A dekatron having 30 rods, works well for seconds and minutes. For those hands, just advance their locations, once every 2 seconds, or minutes, respective of which hand, it represents. Hours is a bit odd. That's why on my original one dekatron

[neonixie-l] Re: Shameless Plug: Arduino Shield for a Dekatron

Wow ! That's just way too cool ! On Wednesday, May 31, 2017 at 9:53:22 PM UTC-7, Paul Andrews wrote: > > : https://youtu.be/LNCbABuIcr0 > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails fr

Re: [neonixie-l] Re: B5750 Nixie tubes for sale in a week or two...

If you believe the datasheets, the 5750 glass tube is ~0.15" (~4mm) taller. If it wasn't for an existing watch, they are "almost" the same tube. But since it is being crammed into a tiny space, that 0.15" will probably make a big difference. http://www.tube-tester.com/sites/nixie/data/b5750s.ht

[neonixie-l] Re: eBay GSP disposes of CRT for no reason

I thought eBay's Global Shipping Program (GSP) was a bad idea, from the get-go ! Just another reason not to use it. When they introduced it, they automatically enabled it, in your settings. You had to go into your account settings, and turn it off. In general, its a rip-off ! Just another eBay

[neonixie-l] Re: Shameless Plug: Arduino Shield for a Dekatron

Just relisted some more kits. Will be kitting more, so the available count may bump up occasionally, or it will be relisted again. In short, I have more. > > Dekatron Shield Kit > > > Video > --

[neonixie-l] Re: Shameless Plug: Arduino Shield for a Dekatron

On Thursday, May 11, 2017 at 1:30:39 PM UTC-7, Paul Andrews wrote: > > Will this work with OG-7? How will I socket it? > The OG-7 is a high speed tube. It has the OG-4 pin out. If you think of the the OG-4 as being a Russian 6802, the OG-7 is the Russian 6909. I specifically made this kit for o

[neonixie-l] Re: Shameless Plug: Arduino Shield for a Dekatron

I've got plenty of boards, and most of the parts. Looked in my 1uf 250V bin, which usually has plenty of parts, and its damn near empty. Have them on order, from two places (can never have enough), and will kit, and list them, when ready. Hopefully, early next week. I've got plenty of project i

[neonixie-l] Shameless Plug: Arduino Shield for a Dekatron

If you're familiar with the Arduino, here's a shield that will plug into an Arduino Uno, so that sketches can control the dekatron. It also has an A101 socket built in. I have three sample sketches available, and more to come. No charge on the sketches. Dekatron Shield Kit

[neonixie-l] Re: Spotted on Ebay: B6091/NL8423 nixies (larger 20mm/0.8 inch). Manufactured 1985

I used 6091s on my wall clock, a couple of years back: https://threeneurons.wordpress.com/nixie-power-supply/my-nixie-clocks/ Nice tubes. They're holding up well, though its only been a couple of years. They were

[neonixie-l] Re: Taylor Edge Nixie Clock Kit

On Friday, March 31, 2017 at 4:42:53 AM UTC-7, Chuck wrote: > > 360 ohms is way too little resistance for *any* sort of > TTL pullup resistor! That apparently got confused with > the standard *pull down* resistor used to keep an unattended > TTL input *low*. 360 ohms for a TTL pulldown is jus

[neonixie-l] Re: Taylor Edge Nixie Clock Kit

I'm a little late to the party, and the discussion between old 74xx versus 74LSxx caught my attention. In most cases, I'd favor the newer 74LS over the original 74xx. But the resistor values (360 ohm) paint you into using the older series, because 5V / 360ohms gives you 13.9mA. The value seem

[neonixie-l] Re: Inductor specs in threeneuron's HV PSU

Yep, when I saw the stock situation, I order some 82uH parts, and tested them, in excess of the recommended load. Worked great. I had already tested the RLB9014-101, way back when, but routinely ordered the RLB9012 part due to the extra safety margin. On Wednesday, March 22, 2017 at 2:24:48 PM

[neonixie-l] Re: Inductor specs in threeneuron's HV PSU

The coil issued with the kit is a Bourns RLB9012-101. All major distributors (Mouser, Digikey, ...) are currently out of stock, and back ordered to May. That coil is a tad overkill for what the supply is rated to output. The RLB0914-101 will also work to more than the posted maximum specs. So

[neonixie-l] Re: question about threeneurons clock kit

Only list the ones that ready to go out the door. I have parts & boards for a lot more. On Monday, March 20, 2017 at 3:51:48 AM UTC-7, Tomas Begley wrote: > > > > On Monday, 20 March 2017 10:26:55 UTC, Tomas Begley wrote: >> >> @threenurons I noticed that you sold out of the full kit options, d

[neonixie-l] Re: Radioactive Nixies - Study

A krytron. A gas filled cold cathode trigger tube, containing radioactive material used to detonate a nuke. A few years back, Westdave had just visited his cardiologist, the day before the TRW swapmeet. He had an exam, that req

[neonixie-l] Re: OT: Analog Devices completes purchase of Linear Technology

I remember when you had to contact a local Analog Devices sales rep, to buy their parts, and they were shipped out directly from the factory. This was before they sold thru stocking distributors. Their fortunes rose over that of other high grade analog chip makers. I recall them buying out PMI,

[neonixie-l] Re: question about threeneurons clock kit

Ya mean for unused cathodes, like 6 thru 9 on the 10's minute, and 10's seconds ? Nope, it doesn't exercise those unused cathodes. I'm of the opinion, if those tubes are going to stay in that clock "forever", then it doesn't matter. On Friday, March 10, 2017 at 4:31:21 AM UTC-8, Tomas Begley w

[neonixie-l] Re: Wanted: best few photos of Nixies in military equipment

I'd like to see some, too. Back in the mid to late 80's, the US military put out a joint recruitment commercial on TV. It was highlighting the high tech equipment, all the branches used, implying that the recruits will get career building tech skills. One of the shots was a piece of gear, insid

[neonixie-l] Tired of German Postal Service and Customs

I'm seriously considering not allowing any purchases from Germany. An eBay dispute was opened, yesterday, by a German buyer, for not receiving two spinner kits, I shipped on January 3. When I tried to respond, it sent me to German eBay (eBay.de), and of course everything is in German. It took me

[neonixie-l] Re: In18 displaying cathode poisoning after 1000hrs or less.

I took a look at the schematic, and anode resistors (R2-R7, direct drive) are 10K. The voltage drop across each of these resistors should be at least 40V, for 4mA MINIMUM anode current. Put a meter across the anode resistor of an offending tube, and report back the voltage. -- You received thi

[neonixie-l] Re: A tube for less than $5

1000 pieces is too rich for me. Maybe we can pool our resources. Now all we need is a time machine ... In Fall of of 1966, when this ad was published, I went with my father to the local VW dealer to pick up his new '67 Beetle. I was only 8 at the time. I think he paid ~$1700 for that car. --

Re: [neonixie-l] Re: Raytheon nixie glow

> > Raytheon had a lot of military contracts as far as I know. > That right there would make sense for their superior reliability. > > Chuck > > Raytheon, today, is nothing but a large defense contractor. All this coming up from their humble beginnings with products like this B-H tube:

[neonixie-l] Re: What voltage/current to run tubes at

On Wednesday, February 8, 2017 at 9:50:59 AM UTC-8, kitehman wrote: > > > so i should shoot for just under the 2.5ma current rating and go for > lowest striking voltage? higher voltage for a brighter display? > Yes, I would aim at 2.5mA. Exact value +/- not critical. You will find, that once the

[neonixie-l] Re: What voltage/current to run tubes at

See what voltage you need for the tube to strike in a dark room. If you run the tubes at too low current, you risk cathode poisoning. It won't appear immediately, but takes time. Weeks or months. What you'll eventually see is only partial illumination of the digits. Positive neon ions hit the

[neonixie-l] Re: Another day, another clock

On Monday, February 6, 2017 at 3:50:25 PM UTC-8, Ben W wrote: > > Let me ask you something, do you notice flickering on your dekatron? > It looks like you are using the "pie" type animation, I'm using your kit > for another clock and opted for the "processing" type because the > flickerin

Re: [neonixie-l] Re: Another day, another clock

On Monday, February 6, 2017 at 2:33:05 PM UTC-8, Pramanicin wrote: > > Bravo! I like the wood/gold effect...the use of the orange LED is an > interesting one...didn't want to keep the neon theme there? > I wanted to use the light pipe, and neons, even the brightest ones, really aren't bright e

[neonixie-l] Re: Mounting IN-18 tubes

> > Does anyone have any suggestions about how to mount IN-18 tubes? > I was worried about that, too, when I made my latest clock The socket scheme for the IN-18s is covered at my Improvised Socket

[neonixie-l] Re: Another day, another clock

My latest clock: I decided to stick it in this thread, as opposed to creating a new one, because of some of the similarities between this clock, and the one initiating this thread, Both use smaller nixies for the *seconds*,

[neonixie-l] Re: How ICs are made - the inside track...

In 1985, shortly after, I got out of school, they just broke the 1 micron barrier. I think wafers were ~5" (~130mm). >From the few people I've known, that were in the semi business, they change "mask sets" for parts routinely, for an existing part. This is due to keeping up to the current proce

[neonixie-l] Re: IN-13 Lifespan

A couple of data points, but by no means statistically significant. I've had an IN-13 running in my nixie thermometer (pre-kit) for close to 2 years, now, 24/7, and it runs and looks like new. One of my TRW buddies has a simple "winker", that uses the IN-13. It still glows and winks, but its no

[neonixie-l] Re: Another day, another clock

On Saturday, January 21, 2017 at 8:57:21 PM UTC-8, Ben W wrote: > > Thought I would share another clock I just finished! These are IN-12's and > IN-17's inside an old Numechron clock housing using a 3D printed mounting > bracket. > Cute ! Are the IN-17 "colon digits" displaying the seconds ?

[neonixie-l] Re: Crossfade

On Friday, January 20, 2017 at 12:45:09 PM UTC-8, Soren Kuula wrote: > > Hi - I am a complete newbie to nixies. > I have seen some vids of a nice cross fade in tubes, where the next digit > lights up as the previous one fades out. > > > Crossfading was covered a couple of months ago: https://g

Re: [neonixie-l] Re: FS: Shameless Plug - NEW Nixie Thermometer Kit

On Friday, December 2, 2016 at 8:57:28 PM UTC-8, OrangeGlow wrote: > > Just wanted to say how much I like the kit. It works well - I just made > it as in the original instructions, but may use the modifications for > showing C° better. The ZM1000 tubes are a very nice tube. > > Get the power

[neonixie-l] Re: FS: Shameless Plug - NEW Nixie Thermometer Kit

Now two versions. The NT2Z which comes with the ZM1000 nixie tubes and the new NT2R version, which is sold with no tubes, but made to accommodate the Russian IN-14: http://www.ebay.com/itm/152341485181 Will also fit Russian IN-8-2, and Hivac XN11 tubes. On Wednesday, October 26, 2016 at 4:57:5

Re: [neonixie-l] First Build. Some help to decide

Voltage is irrelevant, other than just being high enough to initiate ionization. These are not modern digital logic ICs. Things are not that precise. This is kit, so there are anode current limiting resistors preventing excess current. I don't know your electronics background, but voltage and c

[neonixie-l] Re: Favorite cross-fading algorithms...

On Sunday, November 13, 2016 at 6:10:49 AM UTC-8, Nick wrote: > > Just wondering what people's favorite smooth cross-fading algorithms > > On my current multiplexed clock kits, I've been using an exponential decay and complementary rise:

[neonixie-l] Re: FS: Shameless Plug - NEW Nixie Thermometer Kit

On Wednesday, October 26, 2016 at 4:57:58 PM UTC-7, threeneurons wrote: > > > Nixie Thermometer Kit > > Just a note. I noticed some that bought this kit, did not buy a HV Supply kit along with it. This kit does not make its own 170V, so a supply like my NK01

[neonixie-l] FS: Shameless Plug - NEW Nixie Thermometer Kit

Just finished my new nixie thermometer kit. Its almost the same, as the one-off unit, I made a while back. Main difference, other than the PCB, is that it uses the LM35 instead of the LM34 temp sensor. The LM35 outputs 10mV per degree Celsius. But the kit can display in either Fahrenheit or Cel

[neonixie-l] Re: Free Gerber Files - Nixie Clock

There are a couple of warning messages, but the files are otherwise "clean". Here is a free gerber file viewer, from Pentalogix: Viewmate On Friday, October 14, 2016 at 3:06:08 AM UTC-7, electrofish wrote: > > Hi > having used OSH Park before I sent the

[neonixie-l] Re: OT: Help with Polish Address

Issue resolved. The buyer has confirmed, that he has finally received the package, and its up and running. Thanks, again, for those who helped out. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving

Re: [neonixie-l] Free Gerber Files - Nixie Clock

On Tuesday, October 11, 2016 at 2:20:24 PM UTC-7, Paolo Cravero wrote: > > > I do hope to design and release my own board for B5092/Z560M and alike, as > well as 6x IV-3, IV-6 and IV-22 VFD's. > > Thanks, > Paolo > > >> Threeneurons Public Folder >>

[neonixie-l] Free Gerber Files - Nixie Clock

I have been selling a nixie clock kit on eBay, for some time. The board that mounts the actual nixie tubes must be hand built separately, and its not part of the kit. No such board has been made, due to the large variety of nixie tubes available. So as not to stock bunch of boards, I'm starting

[neonixie-l] Re: NOT another nixie clock!

I'll add my 2 cents to what I want in a meter. A true RMS meter, that goes into the RF range. Linear Technologies use to make a chip that helped do that: http://www.linear.com/product/LT1088 Unfortunately, its been discontinued, but the concept still applies. How you implement the greater func

[neonixie-l] Re: OT: Help with Polish Address

I have two people looking things up. Thank you for your help. On Saturday, October 8, 2016 at 10:07:02 PM UTC-7, threeneurons wrote: > > I need someone familiar with addresses in Poland, to help me with an > address. Apparently, a parcel went missing. It got to Poland, then > disappeared. Pleas

[neonixie-l] OT: Help with Polish Address

I need someone familiar with addresses in Poland, to help me with an address. Apparently, a parcel went missing. It got to Poland, then disappeared. Please contact me privately, at my junk email threeneurons at yahoo.com -- You received this message because you are subscribed to the Google Gr

[neonixie-l] Re: T-Shirts are finally available. Dekatron and Magic Eye shirts from discussion earlier this year.

> email: nixiekeith on gmail. ... email me directly. > > > - Keith > Thank you ... I'll make a note of that. Some good news, just after I posted a rant about eBay. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from th

[neonixie-l] OT: Rant - eBay Sucks ! Shipping Calculator

I've been having a little (losing) battle with eBay lately, on about international shipping. I've been shorted on 4 transactions, in the last month. Their customer service reps are totally ignorant of their own policies. In the modern age, that, sadly, seems to be the norm. I've made 4 calls. O

Re: [neonixie-l] Digest for neoni...@googlegroups.com - 19 updates in 6 topics

Couldn't find any response either. He called me from Hawaii, a couple of days ago, so he's doing all his internet browsing from his iPhone. Could have hit the wrong button, by mistake. Sometimes, I lose my grip on my smartphone, and in the process accidentally start up all kinds of apps. Good t

Re: [neonixie-l] Re: New clock kit in the making

On Saturday, August 27, 2016 at 6:54:48 PM UTC-7, joenixie wrote: > > There was another on the list about 6mos ago, it was a kick starter ... > >> >> No wonder I forgot about it. Kickstarter and other crowd funding sites, were created with good intentions, but it seems the charlatans have caught

[neonixie-l] Re: New clock kit in the making

Now that's a neat concept ! Someone talked about using neon bargraphs (IN9 or IN13) to make an analog clock, but I don't recall actually seeing one. Or maybe I did, and just forgot. Anyways, nicely done ! One of the bad things about getting old is the memory going. On the plus side, I can get a

Re: [neonixie-l] Re: Maybe a stupid question...

> > At least thats my plan tonight. Now to think on it some more. > That's not counter, but free running sequencer. Here's the same circuit, redrawn: The seq

[neonixie-l] Re: Dekatron Experiments

On Wednesday, August 17, 2016 at 2:19:55 PM UTC-7, Keith Moore wrote: > > OMG! That 0A5 arc discharge dekatron spinner is amazing, too! > >> >> I built that thing a while back. I uploaded the video, for another forum, discussing arc discharge tubes:

[neonixie-l] Re: Dekatron Experiments

> Yeah. I saw the odd voltage levels too! > Oh on those. If you get a regular nixie supply; 170V. Make a divider out off 3 22K resistors, and the two voltages are 57V and 113V, which are just rounded off to 55V and 110V. That's assuming it was dead nuts on 170V to start with. Throw that 170V

[neonixie-l] Re: Dekatron Experiments

Oh, yes, its a timing issue. It works fine with the guides detached. Its just more of a curiosity. Flipping the guide pins does make it switch to K1. I'll have to analyze my circuit timing more closely to discover the actual mechanism details. The reset is issued at the same time as the flip. I

[neonixie-l] Re: Dekatron Experiments

On Wednesday, August 17, 2016 at 8:16:44 AM UTC-7, Nick wrote: > > Very nice! > > I like the discrete XOR gate but its a lot of complexity when you can get > a single "tiny logic" XOR gate from Fairchild, Texas or whoever for $0.10 - > one SOT-23 (as opposed to 4 diodes, 4 resistors and a trans

[neonixie-l] Dekatron Experiments

Well, those who know me, know that I have attraction to dekatrons. Here's some of my latest tinkering. A long while back I designed a 4000 CMOS base pendulum circuit. It used a 4017 counter, and a 4013 flip-flop. I revisited that circuit, and came up with one that just uses on 4518 dual counte

[neonixie-l] Re: XC24...

I've got a couple of the XC-18 tubes. Only 3 wires, but the same pretty box: On Thursday, August 4, 2016 at 5:11:23 AM UTC-7, Nick wrote: > > After wondering if I'

[neonixie-l] Re: Australian Nixies!!

My apologies to Roddy. From the looks of that gallery, everybody, and their mom, has better brass skills than I do ! On Friday, July 22, 2016 at 1:02:47 AM UTC-7, Paul Parry wrote: > > Hi Mike, many thanks for the plug! > > Do need to make a correction though - the clock on the left was made by

[neonixie-l] Re: Some Brass for threeneurons!

All I can say is Wow ! That's some really nice work ! On Sunday, July 31, 2016 at 3:00:40 PM UTC-7, Roddy Scott wrote: > > Mike, > > here is a bit of brasswork for you from my latest clock, The Atomium > Clock, featuring CV5278s and a PV Electronics Dink kit, your Dekatron > Spinner and an OG-4

[neonixie-l] Re: Australian Nixies!!

I'm currently trying to get my brass working skills up. Just good enough for trim, and few accents. The guy that has an eye for brass is Paul Parry ( http://www.bad-dog-designs.co.uk): Even with a lot of practice, by the time I'm a quarter as good as him, I'll be dead for 20-years ! A couple o

[neonixie-l] Re: Take a look at this....

> As for a "one-off", home made project,... No power is required > inductive power transfer. ... > Just as a clarification: 1) No power required for levitation 2) Inductive power transfer, to light up the nixies, and run the clock circuit. Only need in the ballpark of 5W. -- You rece

[neonixie-l] Re: Take a look at this....

> > > https://www.kickstarter.com/projects/lasermad/time-flies-levitating-nixie-clock > £35,000 is a rather modest amount to get production running. If he needs plastic bits, the cost of dies are a tad steep. Also getting PCBs assembled. I don't think he's looking at hand soldering a bunch of b

[neonixie-l] Re: Australian Nixies!!

Oh ... as in, "down under". Don't have any of the Philips tubes, like yours, but made a clock with similar National tubes: On Wednesday, July 20, 2016 at 12:20:56 AM UTC-7, Roddy Scott wrote: > > I have just managed to secure 6 x ZM

[neonixie-l] Re: Question about LM4871 application for VFD fiament.

How about an old LM1877 stereo audio amp: Comes in a 14-pin DIP. Can deliver several 100's mA of current. And don't take the supply voltage as "Gospel". In can vary a bit, both up and down. On Tuesday, July 12, 2016 at 8:23:19

Re: [neonixie-l] OT: MegaProcessor...

> > > He also needs to brush up on his Tetris skills...;-) > He sucks at Tetris ! Its about the only computer game I'm good at. If I were to attempt a project a tenth as complex, I'd stay away from a soldering iron for a good year, once I was done ! -- You received this message because you a

Re: [neonixie-l] Re: HLK-PM01

On Thursday, June 30, 2016 at 4:57:12 AM UTC-7, Nick Sargeant wrote: > > I tend to use laptop power supplies to interface with my projects - They > usually kick out 19.5v at 4 or 5 amps. > Going on a tangent, this brings up something that happened to me a couple of years ago. I was at the TRW s

[neonixie-l] Re: HLK-PM01

Most of us, like bringing in low voltage into our nixie clock, or other nixie project. Then boosting that low voltage to the 170V, or more, to power the nixie tubes. That way the bulky "wallcube" stays by the wall outlet, and only a skinny cable goes to our clock. My major concern with the AC w

Re: [neonixie-l] Re: Nixie Newbie

On Tuesday, June 14, 2016 at 12:50:06 PM UTC-7, Mike Allen wrote: > > Do you guys know about this blue dot problem? The "blue dot", is only a minor aesthetic issue. It occurs on IN-18s when they are displaying a "1". I've replicated the problem. It has nothing to do with being multiplexed, or

[neonixie-l] Re: Dekatron powered-on lifespan/duration

I've built most of my nixie clocks around 2003 to 2005. All but one use a dekatron, as a "pendulum". Most of those had the dekatron replaced once. The tube was still functional, but the glass was getting heavily "silvered". Those clocks used a GC10B, or a 6802. On the other hand, I have 3 dekat

Re: [neonixie-l] Re: IN-13 currents

~4.5mA. Just as advertised. Just a note. These tubes do fail, in weird ways, after many hours of use. They may still glow, but it shows up at odd spots. I've noticed in the last few years, a lot of used tubes coming from Eastern Europe, being advertised as NOS. Its easy to spot with nixies and

[neonixie-l] Re: Boost converter inductor sizing question

Is it regulating ? If overloaded, it can never get to that voltage. As Nick stated, if you followed guidelines faithfully, there should be no issues. That's a pretty finicky chip, if misused. What's the rating on the coil ? Can you give us its part number. I did not see a current rating. The c

Re: [neonixie-l] Re: IN-13 currents

Though, the 4K7 is not needed, it does no harm. Even if the xstr had the minimal hfe of 25, there would be less than a 1V drop across that resistor. I have a IN-13 running right now, on my nixie thermometer. The drawing of the pinout, is correct, from the viewed side of the tube. The aux cathode

[neonixie-l] Re: Guess the tube

What do the pins look like ? Round top (bottom) -> most likely 5560. I have a few NL904s and NL905s. Used them on this clock:

[neonixie-l] Re: Shipping to Russia - Recently ?

On Tuesday, May 3, 2016 at 10:36:41 AM UTC-7, threeneurons wrote: > > Today, somebody in Moscow, ordered a dohickie, thru eBay. ... the US > Postal Service has no country of Russia, or Russian Federation, in their > computer. > Well, I just got back from the post office. Shipped the package, wi

[neonixie-l] Shipping to Russia - Recently ?

In the past I've sent a few parcels to Russia without any problems. Parcels usually got there in a timely manner. Only one parcel didn't make it. Actually, it did. It got all the way to the proper city, in Russia. Then it got stamped "return to sender", and ended up, unopened, back on my door s

[neonixie-l] Re: The Light Clock Kickstarter

On Thursday, April 21, 2016 at 2:24:35 PM UTC-7, Jon D. wrote: > > What a disappointment and waste of $153 (shipping included) this was > BUYER BEWARE. > > Here is what they promised: > https://www.kickstarter.com/projects/1054187792/the-light-clock/description > > Is that it ! Nice pr

[neonixie-l] Re: PIxie tube 3D socket

I think using the pins from existing tube sockets is a great idea. And they don't have to be old. There are plenty of ceramic bodied newly made sockets, coming out of China. I just disassembled one, by drilling out the center pin, which works as a rivet:

[neonixie-l] Re: My Project: Nixie Tube Kitchen Timer

Yes, very creative. In the past I've looked at KiCad: http://kicad-pcb.org/ Its powerful design tool. I've watched a few videos on it. Its open source, and free. No restrictions like the free version of Eagle (don't even kno if its still free). One of these days, probably after my OrCAD system

[neonixie-l] Re: V400 carnage

On Saturday, April 19, 2014 at 3:05:50 PM UTC-7, nixiebunny wrote: > > There was also a carbonized spot to the left of the transistor,... I don't > know which was the chicken and which the egg. > > Over the years, I'ved had several experiences with charred PCBs. The most notable one was on p

Re: [neonixie-l] Looky what I found !

You must have "color fast" pixels on your webpage. On my page, colors seem to fade. On Friday, April 1, 2016 at 10:39:22 AM UTC-7, Nocrotec wrote: > > ;-) > When I took those pictures, they looked a bit different. > Dieter > > > - Original Message --

[neonixie-l] Looky what I found !

-- 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 p

[neonixie-l] Off Cathodes - How Low Can the Voltage Be ??

Back when nixies were still in regular use, the 7441, and later the 74141, were used to drive the cathodes. But making really high voltage transistors was a tough chore, especially when packed as a bunch on a chip. The 7441 and 74141 output transistors could not handle the full supply voltage of

[neonixie-l] OT: US Customs Service - Delays

In the past, I had been complaining of the German Customs Service for holding and delaying delivery of parcels. Well, its seems, lately, that the US Customs Service has adopted the same bad habit. In the last couple of months, parcels coming my way, from outside the US, have been held at a cust

[neonixie-l] Re: Polarity and current limiting resistor for INS-1 Nixie Lamps

I'm of the opinion that the dot marks the anode, not the cathode, like this drawing which is alleged to be for the INS-1:

[neonixie-l] Re: Dekatron T-Shirt

Keith Moore wrote: > > This is my shirt. Please order it from me, and *not this fraudulent > seller*. > > > http://www.cafepress.com/thecourtjester > > > - Keith > > Wow, I didn't know. I guess "The Court Jester" is you, and the one I pointed to, is one of the pirates. Coincidentally, I

[neonixie-l] Dekatron T-Shirt

Dekatron T-shirt anyone ? http://www.cafepress.com/mf/85459174/dekatron-you-can-count-on-me_tshirt?utm_content=ChannelAdvisor_US_shopping&utm_medium=productfeed&utm

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