What Are Nixie Tubes?
Nixie tubes are electronic devices used to display numerals or other information using glow discharge. They were invented in the mid-20th century and are prized for their warm, retro aesthetic. Each tube contains a series of cathodes shaped like numbers or symbols, which glow when powered.
CAUTION
Safety First: Remember, some nixie tubes contain mercury. Do not break them open, and dispose of them responsibly according to hazardous waste regulations. More about mercury, you can read here.
How Do Nixie Tubes Work?
Nixie tubes work by passing a small electric current through neon or a similar gas, which causes the gas to glow. Each numeral is a separate cathode within the tube, and by applying voltage to a particular cathode, it lights up, displaying the desired digit. Here’s a simple breakdown:
- Cathode: Shaped like numerals 0-9.
- Anode: Common element within the tube.
- Gas: Typically neon, which glows orange.
A Look at Nixie Tube Types
There’s a diverse world of nixie tubes out there, each with its own charm. Here’s a taste:
- By Size: Common sizes include the IN-14 (large), IN-8 (medium), and the coveted subminiature tubes like the B-5991 (tiny!).
- By Country of Origin: Soviet-era tubes like the IN-14 are popular, but don’t forget American brands like Burroughs and European ones like Mullard.
Price Range: Expect to pay anywhere from ~$20 for common types like the IN-14 to over $100 for rare subminiature tubes.
Complete Table of Common Nixie Tubes:
Tube Type | Size | Country | Typical Price |
IN-2 | Small | Soviet Union | $8-$20 |
IN-3 | Small | Soviet Union | $10-$25 |
IN-8 | Medium | Soviet Union | $15-$30 |
IN-12 | Medium | Soviet Union | $15-$35 |
IN-14 | Large | Soviet Union | $20-$40 |
IN-15 | Medium | Soviet Union | $15-$30 |
IN-17 | Large | Soviet Union | $25-$50 |
B-5991 | Subminiature | USA | $50-$100+ |
Burroughs B-6880 | Medium | USA | $25-$50 |
Mullard ZM1040 | Medium | UK | $30-$70 |
Subminiature | Subminiature | Various | $40-$100 |
Miniature | Miniature | Various | $20-$50 |
Applications and Popularity of Nixie Tubes
- Nixie Tube Clocks: Create stunning timepieces with a vintage flair.
- Retro Calculators: Utilize their numeric displays for an old-school aesthetic.
- Audio Equipment Displays: Serve as eye-catching visual elements.
History of Nixie Tubes
The history of nixie tubes dates back to the 1950s when they were developed by the Haydu Brothers Laboratories and subsequently marketed by Burroughs Corporation. Initially, these tubes were created as a more efficient way to display numerals and symbols electronically in scientific instruments and early computers. The name “nixie” is believed to have derived from the term “Numeric Indicator eXperimental No. 1.”
Year | Development |
1950s | Invention and initial production by Haydu Brothers and Burroughs |
1960s-70s | Peak popularity in scientific and electronic devices |
1980s | Decline due to LED and LCD technologies |
2000s | Revival in retro and custom electronics projects |
Early Development
- Invention: The concept of the nixie tube was first realized in the mid-1950s. The Haydu brothers, George and Zoltan, developed the initial prototypes which were then manufactured by Burroughs.
- Technology: Nixie tubes use glow discharge technology. Unlike LEDs, which rely on semiconductors, nixie tubes use cold-cathode neon gas glow discharge to illuminate pre-formed numerals.
Commercialization and Use
- Popularity: During the 1960s and 1970s, nixie tubes became widely popular in various electronic devices, including calculators, measuring instruments, counters, and clocks. Their unique appearance and functionality made them the display of choice for many high-tech applications of that era.
- Global Production: While the United States was the primary producer of nixie tubes, the technology quickly spread to other countries, including the Soviet Union, Germany, and Japan. Each region developed its own variations, contributing to the diversity in design and function that we see today.
Decline and Revival
- Decline: With the advent of more efficient and cost-effective display technologies like LEDs and LCDs in the late 1970s, the use of nixie tubes declined rapidly. They were gradually phased out of mainstream production and use.
- Modern Revival: In recent years, nixie tubes have experienced a revival among enthusiasts and collectors. Their retro charm and unique aesthetic have led to a resurgence in popularity, particularly in the creation of custom clocks and artistic displays. The demand for nixie tubes has also been fueled by a growing interest in steampunk and vintage technology projects.
Pros and Cons of Nixie Tubes:
PROS | CONS |
Retro Aesthetic | Limited Lifespan |
Nixie tubes provide a nostalgic, vintage look that appeals to enthusiasts and collectors. | Typically lasts around 10,000 hours, requiring replacements over time. |
Bright and Readable | Fragile and Delicate |
Offers clear visibility with a warm glow, making them ideal for displays. | The glass construction makes them prone to breakage if not handled carefully. |
Unique Glow | Higher Power Consumption |
Distinctive neon glow differentiates them from LED displays. | Consumes more power compared to modern LED alternatives. |
Variety of Sizes and Types | Limited Availability |
Available in numerous designs, allowing for diverse applications. | Becoming rarer, especially vintage models, which can increase costs. |
Customizable for Projects | Potential for Malfunction |
Popular in DIY projects for custom clocks and displays. | Can flicker or dim if connections or voltage are not optimal. |
Collector’s Appeal | Complex Wiring and Voltage Needs |
Sought after by collectors and hobbyists, adding to their charm and value. | Requires specific voltage levels (around 170V DC) and careful wiring. |
TOP Nixie tubes problems and Tips to fix it
While charming, nixie tubes can encounter issues:
- Dim Lighting: May result from age or inadequate voltage.
- Flickering Displays: Often due to poor connections or faulty wiring.
Solutions
- Check Power Supply: Ensure proper voltage and connections.
- Replace Faulty Tubes: Swap out aged tubes to restore brightness.
- Regular Cleaning: Keep connections and contacts clean for optimal performance.
Conclusion
Nixie tubes, with their unique glow and vintage appeal, offer endless possibilities for creative projects and collections. Whether you’re building a nixie calculator or simply admiring their charm, understanding their history, operation, and availability can enhance your experience.
FAQ
With proper use, nixie tubes can last for thousands of hours. A dimmer glow is a sign the tube might be nearing the end of its lifespan.
Nixie tubes require a higher voltage than LEDs (typically around 140-170V). You’ll need a dedicated driver circuit to safely power them.
The main concern is the mercury content. As long as the tubes remain intact, they pose no danger. However, if a tube breaks, proper ventilation and hazardous
With their growing popularity, prices can vary, often increasing with demand.
Prices range from $10 for small tubes to over $100 for rare or vintage models.