Archive | nixie

Clock Kit Round-up – December 2011

Hello Readers

If there’s one thing that I really like it’s a good clock kit. Once constructed, they can be many things, including:

  • a point of differentiation from other items in the room;
  • a reminder of the past (nixie tubes!) or possible visions of the future;
  • the base of something to really annoy other people;
  • a constant reminder to get back to work;
  • a source of satisfaction from having made something yourself!

So just for fun I have attempted to find and list as many interesting and ‘out of the ordinary’ kits¬†as possible, and ignored the simple or relatively mundane kits out there. If you are in the clock kit business and want a mention, let me know. So in no particular order, we have:

adafruit industries “ice tube” clock

Based around a vintage Soviet-era vacuum IV-18 type fluorescent display, the ice tube clock is a rare kit that includes a nice enclosure which keeps you safe from the high voltages as well as allowing the curious to observe your soldering skills. I reviewed this kit almost a year ago and the clock is still working perfectly. Here is a video of the ice tube clock in action:

After some travelling meeting various people it seems that quite a few of us have an ice tube clock. There is something quite mesmerising about the display, perhaps helping to recall memories of our youth in the 1970s and 80s.

nootropic design Defusable Clock Kit

As recently reviewed, this kit allows you to build a simulated ‘countdown’ timer for a hypothetical explosive device that also doubles as a clock with an alarm. For example:

Whatever you do, don’t make a ‘fake bomb’ and leave it out in public! Only bad things could happen ūüôā

ogilumen nixie tube kits

Not a clock kit as such, however they have made doing it yourself very easy with their power supply and IN-12A nixie board kits. We made one ourselves in a previous review, as shown below:

Alan Parekh’s Multimeter Clock Kit

This is certainly one from left field Рusing the analogue multimeters to display hours, minutes and seconds. See Alan describe his kit in this video:

Certainly something different and would look great on the wall of any electronics-themed area or would easily annoy those who dislike the status-quo of clock design.

akafugu VFD Modular Clock

The team at akafugu have created a modular baseboard/shield kit which holds a shield containing four IV-17 alphanumeric nixie tubes to create your own clock or display system:

vfd-7

Unlike some of the other nixie tube kits the firmware has been made public and can be modified at will. In the future different display shields will be available to extend the use of the kit.

tubeclock.com kits

This site has two kits available, one using either four or six Soviet-era IN-12 type nixie tubes:

large_red

… and another kit using the Soviet-era IN-14 nixie tubes:

You have to hand it to the former Soviet Union – they knew how to over-produce nixie tubes. One rare example where we can benefit from a command economy!

evil mad science clocks

The certainly not evil people have two clock kits, the first being the Bulbdial Clock Kit:

This uses a unique ring of LEDs around the circumference of the clock face to create shadows to mark the time. It is also available in a range of housing and face styles. Their other kit of interest is the Alpha Clock Five:

The photo of this clock doesn’t do it justice – the alphanumeric displays are 2.3″ tall, making this one huge clock. It also makes use of a Chronodot real-time clock board, which contains a temperature-controlled oscillator ¬†which helps give it an accuracy of +-/ 2 minutes per year. Furthermore you can modify this easily using an FTDI cable and the Arduino IDE with some extra software. Would be great for model railways (or even a real railway station) or those insanely conscious about the time.

Kabtronics Clock Kits

This organisation has several clock kits which span a range of technology from the later part of the twentieth century. These guys can only be true clock enthusiasts! Starting with the 1950s, they have their Nixie-Transistor Clock:

neononwall

Look – no integrated circuits, leaving the kit true to the era. If you need to hide from someone for a weekend, building this would be a good start. Next we move onto the 1960s and the Transistor Clock:

onwall_l

The 1960s brought with it LEDs so they are now used in this kit, however the logic is still all analogue electronics. However next we can move to the 1970s, and finally save some board space with the TTL Clock:

ttlclock_1721

This would still be fun to assemble but somewhat less punishing for those who don’t enjoy solder fumes that much. However you still have a nice kit and something to be proud of. Finally, the last in the line is the 1980s-themed Surface-Mount Technology Clock:

smtclock_l

So here we have a microcontroller, SMT components, and a typical reduction in board size. Their range is an excellent way of demonstrating the advances in technology over the years.

The GPS FLW Display Clock

Wow Рthis clock makes use of huge Burroughs B7971 15-segment nixie tube displays and a GPS receiver to make a huge, old-style/new-tech clock. Check out the demonstration video:

This thing is amazing. And it is actually cheaper to buy a fully-assembled version (huh). The same organisation also offers another GPS-controlled clock using IN-18 nixie tubes:

nixichron10

Again, it isn’t inexpensive – however the true nixie tube enthusiasts will love it. This clock would look great next to a post-modern vintage hifi tube amplifier. Moving forward to something completely different now, we have the:

adafruit industries monochron¬ģ

Almost the polar opposite of the nixie-tube clocks, the monochron uses an ATmega328 microcontroller and a 128 x 64 LCD module to create some interesting clock effects. For example:

Many people have created a variety of displays, including space invaders and the pong game simulation. The clock also includes the laser-cut acrylic housing which provides a useful and solid base for the clock.

Spikenzie Labs¬†Solder : Time‚ĄĘ watch kit

Technically this is a watch kit, however I don’t think that many people would want to walk around wearing one – but it could be used in more permanent or fixed locations. Correct me if I’m wrong people. However in its defence it is a very well designed kit that is easy to solder and produces a nice clock:

It uses a separate real-time controller IC to stay accurate, and the design However this would be a great suggestion as a gift for a younger person to help them become interesting in electronics and other related topics. The asm firmware is also available for you to modify using Microchip MPLAB software if that takes your fancy.

Velleman Kits

The Velleman company has a range of somewhat uninspiring clock kits, starting with the Scrolling/Rolling LED Clock:

… the 2¬ľ” 7-Segment Digital Clock:

This clock includes the housing and also accepts an optional temperature sensor, and therefore can display this as well. There is also the aptly-named – Digital LED Clock:

mk151

It tells the time and would be useful in a 1980s-era idea of the future movie set. The final velleman clock kit is the Jumbo Single-Digit Clock:

In all fairness this one looks quite interesting Рthe LED display is 57mm tall and the time is display one digit at a time. It is powered by a PIC16F630 however the firmware is proprietary to velleman.

Nocrotec Nixie Clocks

This company has a range of kits using nixie tubes and numitrons (low voltage incadescent displays in tubes). One particularly lovely kit is their IN-8 Blue Dream kit:

in-8-bd-h-side-blue

The blue glow at the base of the nixie tubes is due to an LED mounted at the bottom of the tube. Another aesthetically-pleasing kit is their Little Blue Something nixie clock. Check out their demonstration video:

nixiekits.eu

More IN-12 nixie clocks from Germany, the first being the Manuela_HR. You can buy the kit without an enclosure, or choose from the ‘office’ style:

… or this funky number:

You can specify it with RGB LEDs which colour-cycle to provide the effect shown above. For those not too keen you can also buy the kits pre-assembled. Their other kit is the Sven:

Sven_IN-8-2_720

It is available with IN-8 or IN-14 nixie tubes. The design quality of the enclosure is outstanding, a lot of effort has been made to produce a complete kit that “won’t look like a kit” when completed.

Minty Time

This is a small binary clock kit that fits in an Altoids tin:

This is a nice little kit as it is inexpensive, easy to make and very well documented. You could also mount this in a variety of flat surfaces, limited only by your imagination.

The Chronulator

Here we find a unique design that uses analogue panel meters in a similar method to the multimeter clock detailed previously. Here is an example of the completed kit:

IMG_1113

The kit contains the electronics and meters (or you can delete the meters for a discount if you already have some) however the housing is up to you. Furthermore, this kit has some of the best instructions¬†(.pdf)¬†I have ever seen. They are a credit to the organisation. Our final clock kit is the …

Denkimono

This is another clock kit in the style of ‘suspicious bomb timer’-looking – and it pulls this off quite well. Consider the following video demonstration:

As well as a normal clock it can function as an alarm, stopwatch, countdown timer and lap counter. The instructions (.pdf) are well written and easy to follow. Furthermore the Denkimono is also well priced for the kit and delivery.

Hopefully this catalogue of clock kits was of interest to you. If you have found some other kits to add to the list, or wish to disagree or generally comment about this article please do so via the comment section below. This article was not sponsored in any way.

Have fun and keep checking into¬†tronixstuff.com. Why not follow things on¬†twitter,¬†Google+, subscribe ¬†for email updates or RSS using the links on the right-hand column, or join¬†our¬†Google Group¬†‚Äď dedicated to the projects and related items on this website.¬†Sign up¬†‚Äď it‚Äôs free, helpful to each other ‚Äď ¬†and we can all learn something.

Posted in clocks, kit review, nixie, review, TTL, VFD8 Comments

Kit review – ogi lumen Nixie Tube system

Hello readers

Time to finish off the month with a fascinating kit review ¬†– the ogi lumen nixie tube system. The younger readers amongst us may be thinking “what is a nixie tube?” Here is an example of four in a row:

p1080918

If you cast your mind back to before the time of LCDs, and before LEDs… to the mid-1950s. Nixie tubes were used to display data in various forms on electrical devices, from test equipment, scales, elevator indicators, possible¬†doomsday machines, clocks – anything that required visual output would be a candidate. Although nixie tubes are now totally out of date, as with many things there is a growing trend to use them again, for cool retro-style, nostalgia and those people who enjoy living in the past.

How nixie tubes work is quite simple, an element is within a vacuum tube full of gas, such as neon. When a high-voltage (~190 volts DC) current flows through the element, it glows. For more information, here is a great explanation. You will note that they are similar to in look but different in design to the vacuum-fluorescent displays, as used in the ice tube clock reviewed a few months previously. The tubes used in this kit are the Soviet model IN-12A:

p1080865

The IN-12A tube can display the digits zero to nine, with a nice orange glow.  For the uninitiated, sourcing and making nixie tubes can be quite difficult. Apart from procuring the tubes themselves, you need a suitable power supply and logic ICs that can handle the higher voltage to control the tubes. Thankfully Ogi Lumen have put together a system of kits to make using these nixie tubes simple and interesting. There are three components to the system, the first being the power supply:

p1080879

Note that the power supply is preassembled. This supply can generate the necessary 150 to 220 volts DC to energise our nixie tubes. Yes – up to 220 volts! For example:

p1080922

However the current required is quite small – one power supply can handle up to twenty-four IN12A nixie tubes. My example in the photograph above is drawing 110~120 milliamps from a 12V DC supply. For those of you assembling these kits, please be careful. It can be easy to physically move the kit about whilst in operation, and touching the live HV pads will hurt a lot. After bumping the HV line on the PCB, my whole left arm went into a spasm and hurt for the time it took to see my doctor. So be careful.

The second item required is the driver kit. This is a board that takes care of the shift-registers and power for two of the nixie tubes. Driver kits can be slotted together to form a row of nixie tubes. The third and final item is the nixie duo kit. This contains two IN-12A tubes, matching sockets and a PCB to muont them. This PCB then slots into the driver kit PCB. You can buy the driver and duo kit as a set for a discount.

From a¬†hardware¬†perspective, assembling the kits is relatively simple. There isn’t any tricky soldering or SMD to worry about, however you will need a lot of solder. The contents of the duo and driver kits are as follows:

p1080869

Before you start soldering, please download and take note of the instructional .pdf files available for the duo and driver board kits. Assembling the driver kit (on the right) is very straight forward. However – please read the instructions! An interesting part of note is the K155–ė–Ē1IC:

p1080872

This is the Russian equivalent of the 74141. This is a BCD-decimal decoder IC that can handle the high voltages required for nixie tubes. When soldering the resistors, take care with R2 – it will need to be positioned horizontally so as to not rub against the duo board:

p1080934

When it is time to assemble the duo board, you will need time and patience. At a first glance, one would imagine that the sockets drop into the PCB, and the nixie tubes will happily be seated into the sockets. This is not so, don’t solder in the sockets first! The pins on the bottom of the socket also form part of the socket for the tube legs – which can alter the positioning of the socket legs. Make sure you have the socket with pin 1 at the top of the PCB. After some trial and error, the best way to insert the tubes is to first partially place the sockets into the PCB:

p1080880

… then fully insert the tubes into their sockets. Make sure the tube is the right way up – check that the digit 3 in the tube is the right way up. Then push the whole lot into the PCB. At this point you should check to make sure the sockets are in line with each other:

p1080892

(Notice how thick the PCB is…) At which point you can solder them in, followed by the row of¬†connector¬†pins:

p1080896

By this stage you will need some fresh air from all that soldering. The PCB holes for the socket pins really take a lot. Now you can connect the power supply to the driver board and give the tubes a test-toast:

p1080941

All the tubes should have their elements glowing. This is a good start. The next step is to connect the appropriate microcontroller and start displaying. As noted in the instructions, the 74141 BCD-decimal ICs are controlled by standard 74HC595 shift-register ICs, so your microcontroller needs to send out a data, clock and latch line. My following examples have been created using the Ardiuno system and a compatible board.

The first example is a method of displaying integers. It uses the Nixie library which you can download here.

That was just an arbitrary demonstration to get some numbers displayed. Here is a short video clip of it in action:

Now for another, more useful example. By using a DS1307 real-time clock IC with the Arduino, we can make a nice clock that displays the time and date. For more information on using the DS1307 with Arduino, please visit this tutorial. You can download the example nixie clock .pde file from here. And finally, here is the clock in action:

The problem with these tubes is that you will never have enough. Already I have thought of a few things to make that require a lot more tubes, so in the next month or so stay tuned to tronixstuff.com as there will be more projects with these kits.

In conclusion, this was a great kit and anyone looking to use some numerical nixie tubes will do very well with the Ogi Lumen products. Furthermore the designs are released under Creative Commons by-sa-nc, and the files are available to download from the product pages. And finally, it is a lot of fun – people will generally ask you about the tubes as they may have never seen them before.

Remember, if you have any questions about these modules please contact Ogi Lumen via their website. Higher resolution images available on flickr.

Have fun and keep checking into¬†tronixstuff.com. Why not follow things on¬†twitter,¬†Google+, subscribe ¬†for email updates or RSS using the links on the right-hand column, or join¬†our¬†Google Group¬†‚Äď dedicated to the projects and related items on this website.¬†Sign up¬†‚Äď it‚Äôs free, helpful to each other ‚Äď ¬†and we can all learn something.

[Note – the kit assembled in this article was received from Ogi Lumen for review purposes]

Posted in arduino, kit review, learning electronics, nixie, ogilumen11 Comments


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