DIY NuTube from fluorescent display VFD 

hi. if you can see the grid it's generally considered too hot. that's the thought behind normal vfd operation. that is also a longevity consideration. a really neat adaptation of an older technology.

This is sweet, I was thinking of this when nutubes first came out, why not use a couple power resistors in a voltage devider configuration for the heaters?

Great work! I should start experimenting... Maybe ssrp circuit or other filament current can make it a proper preamp tube to drive a 300b or other fancy output tube. Some promo for the idea, and audiphiles might just buy it.... All remaining vhs rigs being hunted down..

I would make a guitar pedal with this. Thanks for the idea.

That is really cool. Any way to get a copy of your schematic?

Hello Rob! Crazy and genius too! Goog good job.

I wonder if vfd is microphonic at all like the Nutube. Love to hear something out of it. Cool video. Subscribed

nuOldstockTube!

Hi Rob! does that mean that in a multiple digit device they are equivalent number of triode? Though than you for sharing this stuff I was searching for about some month ago! cheers kik

Have done anymore experimenting with the DIY NuTube?

can you set the bins on that scope to 2048 might be a bit slower but might give a better FFT.

what if you drop from 12Vto 3volt via 7812->7808->3Vreg.

This is cool as fuck. I would love to try this. Would you be willing to share your schematics? Thanks in advance :) Love from Canada :)

how about playing a guitar?