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.
I'd like to see these tings used more often. They are a nice retreat from current digital bargraphs; they are analog displays, meaning their output is completely linear.
Would you have a rough estimate of the cost it took to build this setup? I applaud the elegance of your design, and I'd like to duplicate it. Sadly, I'm on a budget and can't over-indulge :)
Great ! Do you have any scehmatics ?
iw2mln 3 days ago
This looks pretty awesome. Great job :)
TheFurtiveFox 7 months ago
@IllegalMavamaarten
They are gas-discharge tubes; they have near instantaneous response.
douro20 1 year ago
very nice
stylesuxx23 1 year ago
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?
parabolic9 1 year ago
@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.
lurhmann 1 year ago 2
What's the song??
sstojanov23 1 year ago
@sstojanov23 You're supposed to be my friend by 1990s
Abyss0147 7 months ago
badass
leasecleaning 1 year ago
use you LED or plasma tubes or something???
Vocoder07 1 year ago
very beautiful
XELA2T 1 year ago
why is it electronic engineers always listen to random music no ones heard of?
tyga42 1 year ago
@tyga42
maybe because popular music is shit.
AmAnAnCe 10 months ago
@tyga42 because thats the way we role
crazywright83 10 months ago
@crazywright83 I just wanted to give you excuse to say it :D
tyga42 8 months ago
I'd like to see these tings used more often. They are a nice retreat from current digital bargraphs; they are analog displays, meaning their output is completely linear.
douro20 2 years ago
Small flourecent tubes (used in LCD panels) can also act like this, but they are very dim.
VideyoJunkei 2 years ago
Beautiful! Put them in a rack cabinet :D
gavincurtis 2 years ago
It isn't nixie, it's plasma bargraph
klemo86 2 years ago
False. They are Nixie brand cold-cathode display tubes if you want to get technical. Its more of a neon light than plasma.
lurhmann 2 years ago
Would you have a rough estimate of the cost it took to build this setup? I applaud the elegance of your design, and I'd like to duplicate it. Sadly, I'm on a budget and can't over-indulge :)
charlietheanim8tor 2 years ago
@charlietheanim8tor LEss than $400, more than $50 I'd imagine using tubes. Less with LEDs, but LEDs I'd imagine are more complicated.
HLSDK 2 years ago
Do you think it would be easier to do this with an Arduino and a few MOSFETS instead of all of the other circuitry?
charlietheanim8tor 2 years ago
want.
nodnodwinkwinkV 2 years ago
Very nice!
fgil45 2 years ago
whoa. thats so dang awesome. ive got to have one.
vftdhys 2 years ago
This is NICE, can you give me that song the "The day i turned to glass - honeycut" send on e-mail? pls. :-)
JakubKobik 2 years ago
awesome dude
revolvingtoto 2 years ago
Beautiful design and workmanship.
gavincurtis 3 years ago
NICE!
sonick808 3 years ago
very, very, very nice! do you have any plans available?
cutterschoicenotmine 3 years ago 6
How did you do your band pass filtering?
Thanks for the tip.
blaxpear 3 years ago
It's probably FFT.
MungeParty 2 years ago
very nice. You must have a killer powersupply. 10ma for a full bar * 14 bars = 140ma. 150VDC * 140ma = 21Watts!
Nice work indeed...
deemstyle 3 years ago
this has to be one of if not the most hardcore vu meters i have ever seen!
ohiopctech 4 years ago
Wow nice work. Obviously your DAD had nothing to do with this
merqleez 4 years ago
Holy fuck.
This is amazing! Great Job man! Totally sexy! Interested in selling kits? ;} hit me up
Br0 4 years ago
WOW thats awesome!! great job!!!
dan551x 4 years ago
Great job. looks sweet!
rdzombie 4 years ago
very cool, most impressed in how it looks.
l1oyd 4 years ago
very cool, most impressed in how it looks.
l1oyd 4 years ago
tighttt
pkcwan 4 years ago