How do you control a Nixie tube?

How do you control a Nixie tube?

You can’t directly drive a Nixie Tube with microcontroller’s output pins: each Nixie cathode not connected to ground is at a voltage near to Vm. The simplest solution is to use a transistor and connect its base to a microcontroller pin.

How long do Nixie tubes last?

Average longevity of Nixie tubes varied from about 5,000 hours for the earliest types, to as high as 200,000 hours or more for some of the last types to be introduced.

Do Nixie tubes use a lot of power?

Although the voltage is high, the amount of current flowing is very small, so the clocks do not use much power. They only consume about 3 to 4 Watts of power, and consequently generate almost no heat. The tubes are not hot or even warm to the touch.

How many volts do Nixie tubes need?

170 volts
Nixie tubes require high voltages (>170 volts) to illuminate. A single anode is connected to a high voltage source via a dropping resistor and cathodes shaped like numbers are grounded to make them illuminate. Drivers, then, must be capable of withstanding the driving voltage.

Why are Nixie tubes so expensive?

The reason is that nobody is making nixie tubes on a commercial basis nowadays. As old tubes get used up, they also become more expensive. The tiny tubes used in watches are especially rare because they were rarely used in the nixie display age. The thing is that tubes were not popular in clocks until recent years.

Why are Nixie watches so expensive?

Are Nixie tubes reliable?

The accuracy of the Nixie clock is thus locked to the accuracy of the hydrogen maser. The stability of this maser is around 4×10-15 at 1 day making this the most accurate Nixie clock on the planet. The ‘scope clock in the right is directly driven by the maser’s 1 PPS output.

Do they still make Nixie tubes?

The last nixie tube was made in the early 90s, when this beautiful technology was replaced by lower-cost alternatives. But production has now resumed in the Czech Republic.

What does Nixie stand for?

noun. a letter or parcel that is undeliverable by the post office because of a faulty or illegible address.

Are Nixie tubes toxic?

It’s somewhat safe but potentially lethal. I tested everything with a meter and shorted all leads together to make sure mains are off. Be careful and think twice before you do anything. Thanks for the good advice! Another question: why should I have the HV off until testing?

How do you use a Nixie tube on an Arduino Uno?

Arduino Uno or any other 5V Arduino Before you get started, you need to get acquainted with the Nixie tube. Each digit of the tube has an ending pin at the bottom of it. If any of these leads are connected to the ground, the digit will glow; provided the anode of the tube is supplied with 170 to 180 volts.

What are Nixie tubes and how do you use them?

Nixie tubes were the only way to display numbers back in the 50s, before VFD and seven segments displays. Today they are highly sought after for their retro / steampunk look. Using nixies with Arduino is fairly straightforward, but you’ll need a few exotic parts.

How do you connect a Nixie tube to a sn74141?

Connect the cathodes of your Nixie tube to the corresponding pins on the SN74141 and connect the the anode of the Nixie tube to 180vdc+. The IC chip takes a binary input on D, C, B, A and outputs the corresponding digit of the nixie tube.

How do you adjust the voltage of a Nixie tube?

Use a multimeter to adjust the DC-DC step up converter to the proper voltage. My nixie tubes need around 180vdc. Connect 180vdc+ to the anode of your nixie tube with a 12k resistor. It doesn’t have to be exact and it will depend on the Nixie tube you are using. I like to use a potentiometer so I can adjust the brightness of the tubes.