[chbot] New valve

[Colin Isenman]

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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