diytube.com

Posted: **Thu Jan 29, 2015 6:21 pm**

As in New Tube, a combined Korg / Noritake project, the 6P1:

http://www.korg.com/us/news/2015/012212/

Posted: **Thu Jan 29, 2015 9:51 pm**

Well, ain't that just slick! :))

Posted: **Sat Jan 31, 2015 10:11 am**

But where's the datasheet (and curves)?

Shannon

Posted: **Sun Feb 01, 2015 9:34 pm**

Maybe it is still "vaporware"

Posted: **Mon Feb 02, 2015 8:18 am**

My guess from the appearance is a build kinda like a VFD and just "triodey" enough to make the harmonic content w/o DSP.

Just a guess, though.

Posted: **Mon Feb 02, 2015 1:52 pm**

VFD is basically a crude simple triode, filament, grid(s) anode(s) which glow blue-green when there is current flow.
Typically, Filament is 2.4V @ 80 mA, plate and grid voltages +/- 24V max, YMMV, etc.
Mu, gm, RP is anybody's guess. (???)

Probably as microphonic as a guitar pickup =:o

Posted: **Mon Feb 02, 2015 4:24 pm**

EWBrown wrote:Probably as microphonic as a guitar pickup

Might be mounted on its own board, stuck to the main with DS Sorbothane tape.
(saw that done with a mic cart. once)

I tried playing with a VFD as a triode once.... had a mu of 1.4 or 1.6 or something. NOISY as heck from the phosphor (making photons, freeing electrons and all that rubbish).

Cheers!

Posted: **Sat Feb 07, 2015 11:38 am**

Maybe it is designed to give off loads of harmonics = not suitable for HiFi/audio.

On the other hand, could this be a planar triode? And how "good" is a planar triode? (Got a 2C39A for future projects).

Posted: **Sat Feb 07, 2015 12:18 pm**

Blackburn was developing planar 12AX7's when they went bankrupt. Missed the release dates twice.

As one engineer at another forum suggested, "I think planar physics got in the way"

Posted: **Thu Feb 12, 2015 9:35 am**

Antediluvian Triodes:

diytube.com

NUTUBE

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Very early tubes