Nixie Music Visualizer

http://tchips.com/home/index.php?option=com_content&task=view&id=35&a...
A hypnotizing music visualizer inspired by those little bars in the top of iTunes.  Fourteen Russian IN-13 Nixie bargraph tubes are used as the display. The three tests are a short test sweep from 200Hz to 12kHz, The Day I Turned To Glass by Honeycut, and You're Supposed To Be My Friend by 1990s. Each bar shows the volume of a certain frequency band, with low frequencies on the outside, and high frequencies on the inside. The left and right half show the left and right channels of the music.

Category:

Science & Technology

Tags:

• Electronics
• Nixie
• Music
• Visualizer
• EQ
• VU
• Meter
• bargraph
• tube
• IN13
• spectrum
• analyzer

[parabolic9]

nixie BRAND? stfu.

cold cathode's are as to nixies as a segway is to a blimp.

Your filtering looks really good. are comparators driving it directly or are you using SSR's?

[lurhmann]

@parabolic9

The cathode is the element that lights up, and it is a cold cathode because it doesn't need a heater to operate (unlike vacuum tubes). All Nixie tubes are actually cold cathode lamps, but they are closer to neon lights than CCFLs, which you are probably thinking of.

The cathode lights proportionally to the current through the tube, and it is controlled by an op-amp connected to a BJT.

[klemo86]

It isn't nixie, it's plasma bargraph

[lurhmann]

False. They are Nixie brand cold-cathode display tubes if you want to get technical. Its more of a neon light than plasma.

[cutterschoicenotmine]

very, very, very nice! do you have any plans available?

[crazywright83]

@tyga42 because thats the way we role

[iw2mln]

Great ! Do you have any scehmatics ?

[TheFurtiveFox]

This looks pretty awesome. Great job :)

[Abyss0147]

@sstojanov23 You're supposed to be my friend by 1990s

[tyga42]

@crazywright83 I just wanted to give you excuse to say it :D

[AmAnAnCe]

@tyga42

maybe because popular music is shit.



[douro20]

@IllegalMavamaarten

They are gas-discharge tubes; they have near instantaneous response.

[stylesuxx23]

very nice