Nixie Spectrum Analyzer

This Nixie based looking spectrum analyzer is absolutely amazing. What you see are not real Nixie tubes but tubes of my own creation. It uses pixelleds that where fitted into a glass laboratory tube. The electronics is using a pure analog design to isolate all the different frequency bands. No need for hard to find IC’s and no FFT. The ESP32 is used to process the analog data into visible bars. ( Pixelleds)
This video is sponsored by @PCBWay They make great PCB board and offer good assembly service. Check out the website at www.pcbway.com/
With age, soldering is becoming harder and harder on the eyes. I good microscope for soldering is an absolute must have and I don’t have one yet. If you have an idea on a good one or you want me to try one, please contact me.
🕮 Manual: It’s so easy to use..who needs a manual? But I wrote it anyways..check it out here: github.com/donnersm/Analog-An...
🕮 Software/ firmware / sketch / documentation:
Sketch: github.com/donnersm/Analog-An...
👨‍💻 Building instructions:
www.instructables.com/SPECTRU...
🛒 Buy Main PCB:
www.tindie.com/products/markd...
🛒 Buy PCB for Pixelleds
www.tindie.com/products/markd...
🔀Link to video FFT vs Analog analyser • MSGEQ7 vs FFT - Arduin...
🔀Check out the video I did on a VU meter that also uses these Pixelleds Nixie Tubes
community.element14.com/chall...
Music in this video: Warrior by Shane Ivers
www.silvermansound.com
☕ Buy me coffee
If you like me work, please buy me a coffee to help me burning the midnight oil.
www.buymeacoffee.com/MarkDonners
💁‍♂️ Do you want to sponsor my channel? Feel free to contact me anytime
🔀Let's connect
Website: www.theelectronicengineer.nl
facebook: / theelectronicengineer
Instagram: / theelelectronicenginee...
Twitter: / markdonners
-For automatic processing-
[ist] www.instructables.com/SPECTRU... [/ist]
[mke] [/mke]
[git] github.com/donnersm/Analog-An... [/git]
[tin] www.tindie.com/products/markd... [/tin]
[stuff] [/stuff]

[@dfn808]

Awesome project. Thanks for sharing

[@chadh3441]

Dude, hell f*n yes! This is awesome! Great job man!

[@DamesIva]

wow ...i salute to your effort in making this video, nice that u share your ideas and knowledge

[@TheElectronicEngineer]

Thank you Dutch Eva (solution & vlogs)

[@samm928]

Mark, since you made that nice wooden box, you should have added a PAM8403 and get two speakers to the left and right of the tubes ..

[@TheElectronicEngineer]

Great idea

[@peter.stimpel]

well executed, nice project

[@TheElectronicEngineer]

Thanks Peter

[@sidneyl7059]

Nice job sir. Showing some EE skills there.

[@TheElectronicEngineer]

Thanks

[@TheDradge]

Great piece of innovation.

[@TheElectronicEngineer]

Thanks

[@Enigma758]

Very nice project and execution. Brilliant! (get the pun?) 😏

[@ashfordartcornwall3790]

wow this is pretty cool 👏

[@TheElectronicEngineer]

Thank you AshfordArtCornwall

[@KeritechElectronics]

Cool project for sure! :)
Wondering how it would look like with the real deal stuff, and by that I mean IN-13 tubes.
BTW "nixie" here is kind of a misnomer, since nixies were historically numerical only (that's where the name comes from), later on the family extended to all kinds of symbol displays - numerical, special symbols (like the measurement unit, sign or AC/DC in meters), segment displays. Basically anything that displays characters using neon (or other noble gas) glowing on a cathode bent to shape. So, I wouldn't call IN-13 nixies, since they're bargraph displays :)

[@TheElectronicEngineer]

You are correct….thanks for pointing that out

[@notny41]

This is way cool! What was the cost of the board if you don't mind me asking? And you said it is available with small components already installed?

[@TheElectronicEngineer]

Yes pre assembled pcb is available. Please check the link in the description

[@notny41]

@@TheElectronicEngineer It seems like there should be more going on in the higher frequency lines. Normally the highs are quite dominant aren't they?

[@TheElectronicEngineer]

@@notny41 it depends. When using mic input, upper frequencies are limited because of the mic properties. Line in is way better

[@michaelwilliams4575]

The video mentions not to use the same value variable resistors but I don't see any reference in the documentation was to what those two values are.

[@michaelwilliams4575]

@@TheElectronicEngineer 9:23 - 9:31

[@TheElectronicEngineer]

@@michaelwilliams4575 o i see thats correct these blue onces are different check the partlist or schematic for the valued

[@michaelwilliams4575]

👍

[@vmartins81]

Hi, great project, are you selling the project done or the parts for anyone to put together ?

[@TheElectronicEngineer]

Only the pcb

[@edmundblair6113]

PЯӨMӨƧM ☹️