Should have been first nixie tube :-(

I decided to build a tube what would use the technologie like original nixie tubes. I made a mica sheets, used a glass spacers, build an enclosure for digits with grid.. I also made a new style stem with evacuation tube inside, just as experiment.. The tube could have a round top cap..

The tube ready to bake out and pump down, the vacuum pumps already started and then it happened.. I broke the evacuation pipe 🙁 It is pretty fragile.. So enjoy just some photos of ruined tube 😉

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The oven for baking out the nixie tubes

I almost finished the oven for baking out nixie tubes.. I had to replace the heating element because the previous one melted 😀 The only thing I had to add is the fuse 😉

The oven will work up to 500°C, I plan to bake the tubes at temperature of 480°C. The limiting element is the temperature sensor, it is rated for 600°C. The PID controller (MyPin TA4) works to 1200°C, the fire-resistant board (white material) should work up to 1150°C. I limited the power to 200W, the oven goes to 450°C in 45 minutes.

If You are interested in details, just ask in comments..

As usually, I thanks to Ron for his patience and help with building that stuff!

The overall view of the vacuum system with the oven mounted.. Read more

Feel free to contact me.