Chinese Nixie tube clock.GPS Adjust. PCB Art.

  • Mr.Nixie
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9 years 4 months ago #1829 by Mr.Nixie
Simply question,

how have you done this phantastic "track artwork" ?

Best regards
Jürgen

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  • yanzeyuan
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9 years 4 months ago #1830 by yanzeyuan
Hi Jürgen,

I designed this PCB with Altium Designer, most of tracks are Arcs with 15mil width on Top Layer.

See details:


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  • Mr.Nixie
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9 years 4 months ago #1831 by Mr.Nixie
I see, the red marked tracks have an electrical connection and the "golden" are only for the nice optic, right?
My OrCad isn't able to produce such wonderful round tracks :(

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  • yanzeyuan
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9 years 4 months ago #1832 by yanzeyuan
Yes you're right, "golden" are only for good looking and it's safely if you tuch it.

I know OrCAD, it's a good software for circuit design ;)

I'm very interested in your thermomer with IN-9 tube, what's the accuracy of that?

Best.

Yan.

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  • Mr.Nixie
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9 years 4 months ago #1833 by Mr.Nixie
It's around 1°C. The internal self heating due to the tubes design and radiated heat (this gives an increase of around 5°C) I've compensated with a adjustable reference voltage source and a difference amplifier.
Look at the attached schematic. As you see, a "non-PIC design" so feel free to modify the circuity...

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File Name: SCHEMATIC_...herm.pdf
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  • yanzeyuan
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9 years 4 months ago #1834 by yanzeyuan
I got it, thanks ;)

I never seen IN-9, what determines its light length? current?

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