Modern SLO 100 emulator

grrrunge · Post by **grrrunge** » 25 Nov 2011, 14:21

Am i the only one dying to try this one out!?

Anyone's got more info on it?

RnFR · Post by **RnFR** » 25 Nov 2011, 21:39

is there a schematic somewhere?

hbo · Post by **hbo** » 26 Nov 2011, 00:13

RnFR wrote:is there a schematic somewhere?

I based the layout on this schematic:
http://www.aronnelson.com/gallery/main. ... s.jpg.html

Seems like a reasonable schematic/circuit to my novice eyes, but I have no idea how close or far this is from the real thing.

RnFR · Post by **RnFR** » 26 Nov 2011, 06:36

oh yeah, I remember this thing. those MOS stages are freakin weird. I guess the idea is just to drive the hell out of the input of the device? it's supposed to be a new way to model a triode with 9v. i've tried to read the translated version of the the accompanying article, but it wasn't exactly what I'd call English.

I'd still like to fool around with it sometime, though.
btw- Soulsonic designed a SLO emu called Freya a while ago that might be worth checking out.

phatt · Post by **phatt** » 26 Nov 2011, 08:57

FWIW,,,,,,, @ 9VDC ,,,, you're all dreaming.

Built a few Fet circuits and even from 40 VDC they die in thar ass when called upon to perform.

Off course I reserve the right to be proved wrong

Have fun,,, Phil.

slammer88 · Post by **slammer88** » 05 Jan 2012, 09:56

what are these Red dots ?

Nicht Bernd · Post by **Nicht Bernd** » 10 Jan 2012, 10:31

Hi Slammer
The red dots are breaks in the copperlines. Do it with a 4mm drill by HAND. Only "drill out" the copper.
Have fun

slammer88 · Post by **slammer88** » 10 Jan 2012, 16:07

Nicht Bernd wrote:Hi Slammer
The red dots are breaks in the copperlines. Do it with a 4mm drill by HAND. Only "drill out" the copper.
Have fun

Cool but, why would i need to? Isnt this project made over a PCB with full of holes like this? or is this a special one ?

http://www.google.com.tr/imgres?q=delik ... 9,r:17,s:0

deltafred · Post by **deltafred** » 10 Jan 2012, 16:19

slammer88 wrote:
Nicht Bernd wrote:Hi Slammer
The red dots are breaks in the copperlines. Do it with a 4mm drill by HAND. Only "drill out" the copper.
Have fun
Cool but, why would i need to? Isnt this project made over a PCB with full of holes like this? or is this a special one ?

http://www.google.com.tr/imgres?q=delik ... 9,r:17,s:0

That is perf board that you have found, strip board or vero board is what you need the drill for as there are strips of copper running the length of the board, not individual pads round each hole.

See Ebay item 290651644504 for vero (strip) board

slammer88 · Post by **slammer88** » 10 Jan 2012, 17:48

deltafred wrote:
slammer88 wrote:
Nicht Bernd wrote:Hi Slammer
The red dots are breaks in the copperlines. Do it with a 4mm drill by HAND. Only "drill out" the copper.
Have fun
Cool but, why would i need to? Isnt this project made over a PCB with full of holes like this? or is this a special one ?

http://www.google.com.tr/imgres?q=delik ... 9,r:17,s:0
That is perf board that you have found, strip board or vero board is what you need the drill for as there are strips of copper running the length of the board, not individual pads round each hole.

See Ebay item 290651644504 for vero (strip) board

ah, now i see..thanks for the help ^^

zilla · Post by **zilla** » 20 Nov 2013, 03:50

Necrobump

I've been thinking about building this and have been trying to research it to see what it sounds like.

Has anyone built this? What does it sound like?

J0K3RX · Post by **J0K3RX** » 20 Nov 2013, 04:17

I made a layout for it but have not built it yet. I have heard sound demos of boards made with this Russian schematic and it sounds great! I have built most of them all working so I believe this will work. I added a "sweep" pot in place of R23... adds more tonal options

Board transfer
https://dl.dropboxusercontent.com/u/111 ... O-BURN.pdf

zilla · Post by **zilla** » 20 Nov 2013, 04:48

I am thinking of doing the veroboard version, but am a little confused on how I am going to add trimpots in place of those bias resistors.... Pin 1 to the 9v rail and pin 2 to the fet, but I am not sure how to make it fit and look "pretty".

How close do you think this sounds to a 5150 considering that the 5150 was based off of a slo 100?

J0K3RX · Post by **J0K3RX** » 20 Nov 2013, 05:26

well, you can add the trimmers on the end of some wires temporarily until you find the bias where you like and then measure the resistance of them and replace them with fixed resistors.. Sound like a 5150? not so much..

Aharon · Post by **Aharon** » 20 Nov 2013, 10:38

Your day definitely has more than 24hrs

okgb · Post by **okgb** » 20 Nov 2013, 15:55

Anyone compared this to the wampler SLOtortion ? [ or any other fet emulations ? ]
any pcb's available ?
[ Yes I too am dying to hear try -build -one ]

mozwell · Post by **mozwell** » 21 Nov 2013, 01:36

found this somewhere, its the same basic sch, but with some changes done

zilla · Post by **zilla** » 21 Nov 2013, 03:13

Aharon wrote:Your day definitely has more than 24hrs

?

elkulon · Post by **elkulon** » 29 Nov 2013, 22:58

Nice...

I've built the Freya from Soulsonic... Nice work from Chittum, It sounds killer.
It has 7 knobs, one more than this, the 7th would be a Depth control...

J0K3RX · Post by **J0K3RX** » 30 Nov 2013, 00:14

elkulon wrote:Nice...

I've built the Freya from Soulsonic... Nice work from Chittum, It sounds killer.
It has 7 knobs, one more than this, the 7th would be a Depth control...

Nice!!! I was seriously gonna build that one!! I was curious about that tone stack too! You have any pics or sound samples of that? You are a man after my own heart..!