[chbot] New valve

[Brett Davidson]

>---- Original Message ----
>From: Volker Kuhlmann <list0570 at paradise.net.nz>
>To: "Christchurch Robotics" <chchrobotics at lists.ourshack.com>
>Sent: Wed, Nov 22, 2017, 12:53 PM
>Subject: Re: [chbot] New valve
>
>On Wed 22 Nov 2017 12:29:05 NZDT +1300, Marshland Engineering wrote:
>
>> The distortion in valve amps was not to make the Fuzz box or other sounds but
>> inherent in the valve amp itself. However this distortion gave a pleasing
>> sound. Not so with transistors.
>
>Yes we realise that. The point was that should one be hell-bent on
>obtaining the same distortions for the the same effect, one should be
>able to do the same thing with a little bit of silicon, with
>indistinguishable results. In the age of SDRs (software defined radios),
>a bit of 25kHz skulduggery should be on the easy end. While the
>programming requirements exceed that of a valve circuit, the hardware
>cost of a USB-pen-drive sized gimmick, its robustness, power
>requirements, longevity and hardware cost leave the valve option for
>stone dead. All for the *same* signal at the output, i.e. no audible
>difference.
>
>Come on, admit it, you're really talking bling factor here... ;-)

Nuttin' wrong with bling.
Just put one of those "new" retro led light bulbs in to get the equivalent "glow". They have nice glowing "wires" at a fraction of the power output. They glow yellow instead of orange but nothing's perfect... :-) 
https://www.vintagelighting.co.nz/shop/bulbs-components/bulb/ or el wire if you're going really hardcore.  (https://nicegear.nz/product/el-wire-red-3m).

Nice bit of reading on generating the sort of algorithm you need to generate the harmonics : http://cmc.music.columbia.edu/MusicAndComputers/chapter4/04_06.php

Brat.