[chbot] New valve

[Charles Manning]

Low gain... hence using a regenerative receiver so that you get gain on
your gain on your gain....until you're getting transistor-like gain numbers.

Also a great way to make an oscillator.

http://www.vk2zay.net/article/40



On Tue, Nov 21, 2017 at 11:03 AM, Colin Isenman <cisenman at hotmail.com>
wrote:

> So, it looks like a pretty poor amplifier and there must be a cheaper way
> of generating 2nd harmonic distortion!
>
>
>
> Interesting though . . .thanks for the links
>
>
>
> Regards
> Colin
>
>
> ------------------------------
> *From:* Chchrobotics <chchrobotics-bounces at lists.ourshack.com> on behalf
> of Volker Kuhlmann <list0570 at paradise.net.nz>
> *Sent:* Tuesday, November 21, 2017 10:23:59 AM
> *To:* Christchurch Robotics
> *Subject:* [chbot] New valve
>
> Anyone playing with valves? The ones with heating filament, lots of
> volts and even more heat?
>
> Seems like for the first time in decades someone has developed a new
> model, for audio enthusiasts.
> https://www.heise.de/make/meldung/NuTube-Projekt-mit-
> DesignSpark-PCB-3890567.html
>
> Anode 5 - 80V, gain 5, cathode 0.7V (< 20mA?) - it's a modified VFD.
>
> datasheet, Korg model 6P1
> http://docs-europe.electrocomponents.com/webdocs/15db/0900766b815db1b5.pdf
> (Nothing on their website korg.com)
>
> Available from RS for about 36EUR.
>
> Reference project:
> https://www.rs-online.com/designspark/design-of-a-korg-
> nutube-amplifier-part-1-tube-basics
>
> Volker
>
> --
> Volker Kuhlmann
> http://volker.top.geek.nz/      Please do not CC list postings to me.
>
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