Re: [neonixie-l] Re: Multiplexing Displays

2023-11-03 Thread Mike Mitchell
e quickly. > > Is this at all wise? > > - Richard > > > On Thursday, 2 November 2023 at 13:32:57 UTC Richard Scales wrote: > >> @Mike, many thanks. >> >> I'll work through that. >> >> - Richard >> >> >> On Thursday, 2 November 2023

Re: [neonixie-l] Re: Multiplexing Displays

2023-11-02 Thread Mike Mitchell
My most recent Nixie project uses ZM1032 tubes. They are a 9-pin tube, with five cathode pins and two anodes. I'm using direct-drive on all the cathodes, but skimp on the tens-of-hours digit where I only drive three cathodes instead of all five. I'm using four SN75468 darlington arrays to

[neonixie-l] Re: Dekatron clock,

2023-09-23 Thread Mike Mitchell
ted to do :-) > > How did you made the A-101 sockets ? > > > > Le vendredi 22 septembre 2023 à 13:59:24 UTC+2, Mike Mitchell a écrit : > >> I built a dekatron clock based on https://959radio.co.uk/dekatron.html >> as shown here: https://www.youtube.com/watch?v=AeS3

[neonixie-l] Re: Dekatron clock,

2023-09-22 Thread Mike Mitchell
I built a dekatron clock based on https://959radio.co.uk/dekatron.html as shown here: https://www.youtube.com/watch?v=AeS3xuuRBV4 There is a link from that video to a dropbox with photos of the build, including a photo of a hand-drawn schematic. I used a STQ3N45K3 N-channel Mosfet as an

Re: [neonixie-l] Re: EEV E727G - what's that?

2023-02-08 Thread Mike Mitchell
Here's a collection of images for an LCD display that simulate various physical displays. Bina-view is one of them. https://savageelectronics.com/display-array-clock-faces-update/ -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe

Re: [neonixie-l] Are here any good small alarm clocks for use on night table?

2023-02-07 Thread Mike Mitchell
I built an alarm clock using a 7" LCD display with a capacitive touch screen. It has four separate alarm times. https://www.youtube.com/watch?v=pYpZCKaMjaU -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and

[neonixie-l] Collection of Clocks

2022-02-14 Thread Mike Mitchell
Here's a collection of clocks that use vacuum-related displays. Nixies, Dekatrons, Trigger tubes, CRTs, VFDs, Beam Deflection Tubes, and incandescent bulbs are all represented. Some are kits, some were purchased assembled, and some are my own design. Panaplex SP-353

[neonixie-l] Re: nixie clock using trigger tubes

2021-05-14 Thread Mike Mitchell
It only solved the problem for two days. Right now I have two near-UV LEDs shining on the cloche in addition to the blue "neon" bulbs and that seems to have fixed the problem. Next I'll try increasing the current to the blue "neon" bulbs. The vendor says to use a 150K resistor with 220 vac,

[neonixie-l] Re: nixie clock using trigger tubes

2021-05-03 Thread Mike Mitchell
e long - I learnt this the hard way in my earlier NE-2 based clock). > I've updated the schematic on my website to show how I connected the LEDs, > see https://www.pa3fwm.nl/projects/neonclock2/ > > Regards, > Pieter-Tjerk > > > On Sunday, May 2, 2021 at 1:59:44 PM UTC+2 Mike

Re: [neonixie-l] Re: INS-1 neons

2021-01-16 Thread Mike Mitchell
We've covered INS-1 polarity and flickering/wobbling several times. See https://groups.google.com/g/neonixie-l/c/UdCwngFCi-8/m/zPtUE3D4Qt0J The dot/arrow is the Anode. Burn in is a good idea. I went through a bag of 100 INS-1, burning in each for 3-4 hours and found only 12 that didn't

[neonixie-l] Re: Cheapest 6-digit edge lit clock so far

2020-12-29 Thread Mike Mitchell
I paid ~$35 a display using the original "Lixie" like https://www.tindie.com/products/connornishijima/lixie-ii-the-newnixie-for-arduino-digit-kit/ That's why I only used four digits as shown here: https://www.youtube.com/watch?v=wMyD4_ElhUI Now I can buy an entire 6-digit clock for less than the

[neonixie-l] Re: Lens end neon bulb

2020-09-03 Thread Mike Mitchell
I've used the Russian INS-1 for a colon separator. https://tubehobby.com/show_det.php?det=9 or https://www.ebay.com/p/707429259 See also https://hackaday.io/project/1940-modular-nixie-display/log/29161-ins-1 On Tuesday, September 1, 2020 at 1:28:25 PM UTC-4 bdu...@gmail.com wrote: > I had

Re: [neonixie-l] Re: Welcome & please introduce yourself!

2020-07-06 Thread Mike Mitchell
On Sunday, July 5, 2020 at 7:11:48 PM UTC-4, celzey11 wrote: > > That's exactly it! > > https://learn.adafruit.com/ice-tube-clock-kit/mods > > - Chris > > On Sun, Jul 5, 2020, 6:34 PM roy teddmann > > wrote: > >> GPS mod?? Does that mean something other than Global positioning system?? >> So

[neonixie-l] Re: Favorite component suppliers....

2020-04-26 Thread Mike Mitchell
I purchase most of my stuff from Digikey and Adafruit, with a few items from Aliexpress. I've never had a problem with Aliexpress, just keep in mind the long lead times (~6 weeks). I've also used Pololu Robotics and Electronics, http://www.pololu.com They have a laser-cutting service that has

Re: [neonixie-l] NIMO Tubes on ebay

2020-01-05 Thread Mike Mitchell
On Friday, January 3, 2020 at 3:08:23 PM UTC-5, Tyler Bourne wrote: > > Even if someone did try to recreate these they would probably cost even > more. I love NIMOs for their impressive overcomplication of a simple task. > I'm in the process of building a "nearly NIMO" clock, following the

Re: [neonixie-l] 7 Segment Electro Mechanical Vane Display

2019-10-10 Thread Mike Mitchell
On Wednesday, October 9, 2019 at 1:42:35 PM UTC-4, gregebert wrote: > > I suppose you could have a PIR sensor halt the clock updates so it doesn't > get bothersome when you are asleep. > I use a "dead" time where the clock goes blank at a settable time and then wakes up later. It's a blank

Re: [neonixie-l] WordClock-1 is ready to ship

2019-09-24 Thread Mike Mitchell
On Friday, September 20, 2019 at 10:56:15 AM UTC-4, martin martin wrote: > > I am weak when it comes to more clocks. > I ordered one. When it and the others are done there will be 22+ clocks > in the living room. > > I may be from a Twilight Zone ? > >> >> Sounds like me. Look here:

[neonixie-l] Re: Grain-of-wheat light-pipe displays

2019-02-10 Thread Mike Mitchell
I buy most of my components from Digikey and Adafruit. I searched Digikey's online catalog for a long time, ending up with this case: https://www.digikey.com/product-detail/en/hammond-manufacturing/1401AAA/HM287-ND/248016 I painted the front white so the water-slide decals would show up

[neonixie-l] Re: Scope Clock Newbie Question About Heat

2019-01-23 Thread Mike Mitchell
I built two of Grahame Marsh's scope clocks using a wooden base, as shown here: https://www.dropbox.com/sh/rldue6seyzty9ju/AAB8kECNtxuRSKLGU4rF6Pm3a/Photos/MikeM?dl=0_nav_tracking=1 A simple acylic case fits over the base. I used black felt to line the wooden supports. I didn't need to clamp

[neonixie-l] Re: 6-8 Segment Dekatron Clock

2018-12-24 Thread Mike Mitchell
ms with the Dekatron zero cathode in the tens-of-hours position. It's on for eighteen hours a day and the cathode slowly sputters away. I first described the problem and a solution here: https://groups.google.com/forum/?utm_source=digest_medium=email#!topic/neonixie-l/Cb6RFO-lVwI/PDmEpFTRAwAJ

[neonixie-l] Re: Assembled LED Cube Recommendation

2018-08-30 Thread Mike Mitchell
I've used this UNO shield: http://store.linksprite.com/8x8x8-rgb-led-cube-shield/ When I bought mine they came assembled. Looks like it is a kit now. I had to write all the Arduino code to drive it. I just have it randomly display a pattern, though every minute it scrolls the time and date

Re: [neonixie-l] Time for my annual (?) question...mostly for David F....

2018-06-16 Thread Mike Mitchell
oshiba 5DEP31 CRT. It turns on every weekday morning when I walk in the door. I haven't noticed any phosphor burn. I did try a used 5DEP1 CRT that had some obvious burned areas. I keep that tube as a back-up. I also tried a 5EQP7 but found it had to be viewed in a dimly lit room. The long-durati

[neonixie-l] Re: NumiQueen IV-13 clock review

2017-02-15 Thread Mike Mitchell
On Tuesday, February 14, 2017 at 10:06:35 AM UTC-5, gregebert wrote: > > How many displays do you have ? > > You could build a box with all of the displays , controlled by a > WiFi-equipped RasPi , then send it messages from your computer > (time-of-day, temperature, stock prices, etc...) > I

[neonixie-l] Re: NumiQueen IV-13 clock review

2017-02-14 Thread Mike Mitchell
> > I recently came across some numitrons used in aircraft displays. They are .3" digit in molded back plastic. Two small screws hold them together, so I took one apart. One half is light pipes for the segments, the other is a socket for seven grain-of-wheat bulbs. Each bulb is 5v 20ma. The

[neonixie-l] Re: Small run fabrication

2017-01-12 Thread Mike Mitchell
I've used Pololu Robotics & Electronics several times for laser-cut acrylic. You can ship them the material to cut, or choose from their own stock. See https://www.pololu.com/product/749 -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To

[neonixie-l] Re: TI MSP430 promo...

2016-11-30 Thread Mike Mitchell
I've used PJRC's teensy 3.2 in several projects. See http://www.pjrc.com/teensy/index.html They're now selling the teensy 3.6 which includes a floating-point unit. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group

[neonixie-l] Re: Where do I find companies that can laser cut perspex/wood and which software should I use?

2016-10-08 Thread Mike Mitchell
I've used Pololu Electronics a few times for laser cutting. See https://www.pololu.com/product/749 I've had them supply the acrylic, I just send them the cad file and select from their stock. Mike -- You received this message because you are subscribed to the Google Groups "neonixie-l"

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

2016-06-08 Thread Mike Mitchell
My clock has been running constantly for about two years. The zero cathode in the tens-of-hours digit is on for eighteen hours a day. It is now noticeably shorter than the other cathodes, as its metal has been sputtered away. It still works, but I've recently re-wired it so all the even

[neonixie-l] Re: My NixiChron is sick, what do I do?

2016-05-07 Thread Mike Mitchell
gt; > On Friday, May 6, 2016 at 8:02:10 AM UTC-4, Mike Mitchell wrote: >> >> Another component to check is the wall-brick power supply. I have a clock >> with a 4-amp 5v supply, it worked fine for over a year then started acting >> strangely. Under load the wal

[neonixie-l] Re: My NixiChron is sick, what do I do?

2016-05-06 Thread Mike Mitchell
Another component to check is the wall-brick power supply. I have a clock with a 4-amp 5v supply, it worked fine for over a year then started acting strangely. Under load the wall brick was only putting out 3.5v, no load it was up at 5v. I replaced the wall brick and all is well.

[neonixie-l] Re: The Russians are correct! Early A-201 Polyatron prototype is shining blue!

2016-05-03 Thread Mike Mitchell
The camera flash washed out the glow. The glow covers a bit more than 1/2 the pin. I'm using A-101 dekatrons. The power supply is a voltage tripler powered from the 120v mains. I have a 22-ohm fusible resistor in series with the main, then the voltage tripler. Each capacitor is 33uf, with a

[neonixie-l] Re: The Russians are correct! Early A-201 Polyatron prototype is shining blue!

2016-05-01 Thread Mike Mitchell
noticeably smaller" > do you mean that the glow is smaller or that the pin is physically smaller? > > Can you take a photo of this "smaller" one and also of a normal one and > show the difference? > > /Martin > > On Saturday, 30 April 2016 13:20:26 UTC+2, Mike

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

2016-04-30 Thread Mike Mitchell
I just ran across A101 sockets for sale on ebay: http://www.ebay.com/itm/Socket-13pin-dekatron-A-101-A-102-A-103-A-106-Photomultipliers-FEU-28-51-62-1-/222098868026 On Friday, April 29, 2016 at 2:31:16 PM UTC-4, gregebert wrote: > > This isn't my latest version, but it's close-enough to tweak.

[neonixie-l] Re: The Russians are correct! Early A-201 Polyatron prototype is shining blue!

2016-04-30 Thread Mike Mitchell
I considered using polytrons when I started the development of my Dekatron-based clock (shown here: https://www.youtube.com/watch?v=pK276xZWyo4 ) I was under the mistaken impression that the position of the glow couldn't be seen from the top of the polytron tube. Now after over a year of

Re: [neonixie-l] Digest for neonixie-l@googlegroups.com - 15 updates in 1 topic

2015-09-17 Thread Mike Mitchell
I'd really like to see Ahmed's clock before passing judgment. For all we know it could look like this Chronulator: http://www.sharebrained.com/wp-content/2009/01/bombulator-1.jpg On Thu, Sep 17, 2015 at 3:48 AM, wrote: > neonixie-l@googlegroups.com >

Re: [neonixie-l] SZ-8 operating life span

2015-03-18 Thread Mike Mitchell
, Mar 17, 2015 at 3:08 PM, Mike Mitchell dunda...@gmail.com javascript: wrote: I'm using SZ-8 nixie tubes in my dekatron-based clock as shown here: https://www.youtube.com/watch?v=pK276xZWyo4 I find I have to replace the nixie tubes more often than I expected. Most of the failures

[neonixie-l] SZ-8 operating life span

2015-03-17 Thread Mike Mitchell
I'm using SZ-8 nixie tubes in my dekatron-based clock as shown here: https://www.youtube.com/watch?v=pK276xZWyo4 I find I have to replace the nixie tubes more often than I expected. Most of the failures are in the '7' digit. The wire from the insulator stack to the '7' cathode starts to glow

Re: [neonixie-l] Re: Russian 100x100 array

2015-02-26 Thread Mike Mitchell
I've seen similar Russian VFD panels on Ebay: http://www.ebay.com/itm/MONSTER-UNIQUE-GIANT-ULTRA-RARE-BIG-VFD-DIGIT-MATRIX-DISPLAY-TUBE-USSR-CLOCK/261694839768 http://www.ebay.com/itm/MULTI-COLOR-MONSTER-UNIQUE-GIANT-ULTRA-RARE-BIG-VFD-DIGIT-MATRIX-DISPLAY-TUBE/251754583859 They use some

[neonixie-l] Russian 100x100 array

2015-02-23 Thread Mike Mitchell
Has anyone done anything with the Russian IMG-1 100x100 neon array? I've seen a few ebay postings http://www.ebay.com/itm/Rarest-NOS-NIB-NIXIE-MATRIX-screen-100x100-1-Z568M/321346505250 and

[neonixie-l] Re: For those of you with thick wallets...

2015-02-09 Thread Mike Mitchell
Perfect for use in this kit: http://nixiekits.eu/ITS1-A.htm Unfortunately my wallet is too thin for these. I just bought several B7971s Mike M. On Sunday, February 8, 2015 at 8:17:47 PM UTC-5, GastonP wrote: Hey all, just a heads-up A guy which usually sells in the DIYAudio forum has

[neonixie-l] Re: Not-Nixie-Related: Unusual Discrete Component LED Clock.

2014-12-26 Thread Mike Mitchell
KABtronics (http://www.kabtronics.com/), the home site of the transistor clock (http://transistorclock.com/), also sells a nixie-tube version (http://tube-clock.com/). I've built their perpetual calendar. That kit was easy to build but tedious, with over 2300 solder connections. -- You

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

2014-12-14 Thread Mike Mitchell
On Saturday, September 29, 2012 6:20:38 PM UTC-4, pwalnuts wrote: Hi! I've been using INS-1 nixie lamps for a while and they have always ended up flickering after a while. I think i might be doing a couple of things wrong. A) Polarity. They light up any which way you wire them. from the

[neonixie-l] Re: Extraordinary nixie/dekatron clock design

2014-07-24 Thread Mike Mitchell
I thought my Dekatron-based clock was nice (https://www.youtube.com/watch?v=pK276xZWyo4) I bow to the master. On Tuesday, July 22, 2014 11:17:30 AM UTC-4, Nick wrote: I was sent this today by Hank - I strongly suggest you pay the site a visit (http://wv7u.com/cwc/hourglass.html): One of my

[neonixie-l] Re: Source for Dekatrons?

2014-07-03 Thread Mike Mitchell
of 12AT7 tubes. On Sunday, February 9, 2014 6:37:22 PM UTC-5, Mike Mitchell wrote: I'm thinking about building a clock using Dekatrons as the counting logic. It looks like A101 dekatrons are fairly easy to find, but I cannot locate socket for them. I'll probably use QS30-1 nixies

[neonixie-l] Re: A use for all those Itron displays I've got in the garage

2014-06-25 Thread Mike Mitchell
Reminds me of the Wise Clock, which will scroll quotations and personal messages read from an SD card. The wise clock uses a 16x32 bi-color LED matrix though. http://timewitharduino.blogspot.com/2009/07/shoppe.html On Tuesday, June 24, 2014 5:18:55 AM UTC-4, petehand wrote:

Re: [neonixie-l] Digest for neonixie-l@googlegroups.com - 4 updates in 3 topics

2014-06-24 Thread Mike Mitchell
The tubeclock database (http://www.tubeclockdb.com/) is a good place to start. Akafugu has an end-view clock with colons: http://www.akafugu.jp/posts/products/nixie/ On Tue, Jun 24, 2014 at 3:43 AM, neonixie-l@googlegroups.com wrote: Today's topic summary Group: