Let's Talk About Nutube In Modular

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Koryo
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Let's Talk About Nutube In Modular

Post by Koryo » Tue Oct 10, 2017 9:00 pm

Yes there are some tube based modules, but does any anyone know about future designs using the Korg NuTube 6P1?


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http://korgnutube.com/en/

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wavejumperr
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Post by wavejumperr » Tue Oct 10, 2017 9:38 pm

i'm very interested in this
wigglers are a modular synth's way of making another modular synth

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Blingley
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Post by Blingley » Wed Oct 11, 2017 12:16 am

Now, I am not an expert, so let's quote someone who is. From this very forum.
metasonix wrote:People keep asking me about this in email, so here's the same answer.

Noritake makes vacuum-fluorescent displays, and it's very easy to make one into an amplifying triode. It's a very poor triode, mind you. Directly heated filament so it needs a negative grid bias voltage. Will NOT plug into existing equipment. The filament in VF displays is very fine, fragile wire and tends to vibrate, so such a tube will be microphonic. Low gain too. It's not a BAD idea, it just won't meet the typical high expectations of the market.

Yes, people have known about this for a long time:

http://www.qsl.net/m0ayf/VFD-Regen.html
http://hpfriedrichs.com/radioroom/vfd/rr-vfd.htm
http://www.electronicpeasant.com/projec ... trmod.html

Easy to predict what will happen to this: idiot guitarists will ask "hey man, is it like a 12AX7, man". They will be told "no", and the only sales will be for a few Korg products. Which will probably tank because the tube-thing is microphonic.

I would not be surprised if Korg made this announcement in a desperate attempt to injure the sales of their principal supplier of guitar-amp tubes, the ruthless Mike Matthews. Everybody hates Mike. In which case, Korg may or may not even be planning to mass-produce them. Dead giveaway, they aren't offering engineering samples to anyone.

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Koryo
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Post by Koryo » Wed Oct 11, 2017 9:18 pm

I'm not really seeing Metasonix's argument.

This device was clearly engineered to be a amplifying triode and not a display. To me, it does not look to be a direct swap for anything. An appropriate supporting circuit would need to be designed around this unit. Also, my interpretation of his meta argument is that Korg are idiots in this regard. Or to talk about this issue from the other side, vacuum tubes are not the best at being electronic valves either and that's precisely why we like them. Because they are far from perfect.

Soooo.... how can this little guy be used to our sonic pleasure?

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Post by shamann » Wed Oct 11, 2017 10:14 pm

Well, Korg has started to manufacture things with them, including this new Vox mini-amp:
http://www.voxamps.com/MV50

And the new Vox Continental:
http://www.voxamps.com/VOXContinentalKeyboard

So I'd guess user experience with it will start to roll in at some point. Be strange if they're microphonic and used in a keyboard, I would expect that would suck.

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Koryo
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Post by Koryo » Mon Mar 25, 2019 11:02 am

Guess I'll answer my own question.

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NUTONE Thread

vidret
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Post by vidret » Mon Mar 25, 2019 11:22 am

:lol: :lol: well played

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mojopin
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Post by mojopin » Mon Mar 25, 2019 7:03 pm

lol...I remember Metasonix's post and just saw the module today and thought "oooh...that looks good!"

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Post by luchog » Thu Mar 28, 2019 10:18 am

Koryo wrote:I'm not really seeing Metasonix's argument.

This device was clearly engineered to be a amplifying triode and not a display.
No, it really hasn't been engineered that way. They just took a regular VFD segment and slapped it into a new case; the technology is identical. You can get the exact same performance out of any VFD display scavenged from old '80s or '90s vintage electronics, and there are websites out on the net that will tell you how to do it. It's not hard for anyone moderately skilled with electronics.

There are demos of both the Nutube and DIY amps made from scavenged VFDs, and they both sound equally awful. Eric was right about the poor gain, and the microphonics are terrible. There's nothing about the Nutube that is in any way an advantage over thermionic valves or solid state technology. Especially at the price that Korg is asking for these things. They sell for $50 retail, and NOS valves run between $5 to $15 each.

This is pretty much just Korg trying to unload obsolete tech on people who are more interested in gadgets than sound.

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cackland
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Post by cackland » Thu Mar 28, 2019 10:32 am

luchog wrote:
Koryo wrote:I'm not really seeing Metasonix's argument.

This device was clearly engineered to be a amplifying triode and not a display.
No, it really hasn't been engineered that way. They just took a regular VFD segment and slapped it into a new case; the technology is identical. You can get the exact same performance out of any VFD display scavenged from old '80s or '90s vintage electronics, and there are websites out on the net that will tell you how to do it. It's not hard for anyone moderately skilled with electronics.

There are demos of both the Nutube and DIY amps made from scavenged VFDs, and they both sound equally awful. Eric was right about the poor gain, and the microphonics are terrible. There's nothing about the Nutube that is in any way an advantage over thermionic valves or solid state technology. Especially at the price that Korg is asking for these things. They sell for $50 retail, and NOS valves run between $5 to $15 each.

This is pretty much just Korg trying to unload obsolete tech on people who are more interested in gadgets than sound.
Interesting point of view. There was a another wiggler on Instagram I saw the other day that is using these for a module as well.

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Koryo
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Post by Koryo » Thu Mar 28, 2019 4:41 pm

luchog wrote:No, it really hasn't been engineered that way. They just took a regular VFD segment and slapped it into a new case; the technology is identical. You can get the exact same performance out of any VFD display scavenged from old '80s or '90s vintage electronics, and there are websites out on the net that will tell you how to do it. It's not hard for anyone moderately skilled with electronics.

There are demos of both the Nutube and DIY amps made from scavenged VFDs, and they both sound equally awful. Eric was right about the poor gain, and the microphonics are terrible. There's nothing about the Nutube that is in any way an advantage over thermionic valves or solid state technology. Especially at the price that Korg is asking for these things. They sell for $50 retail, and NOS valves run between $5 to $15 each.

This is pretty much just Korg trying to unload obsolete tech on people who are more interested in gadgets than sound.

Well, stop the forums and someone call this guy ASAP to tell him that Big Synth is doing a crook and that his microphonics are terrible!

[video][/video]

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