Solo Dallas - SVDS Replica  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
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modman
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Post by modman »

http://www.solodallas.com/the-svds-repl ... ng-opened/
http://en.wikipedia.org/wiki/Wikipedia_ ... ity_System

I can find anything schematic-wise, and I was seeking all bloody day...

It's just an audio patch (booster/compressor) part of the circuit, no wireless circuity included. Big-ass version is very expensive, but cheaper, more pedalboard friendly version is in works
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Post by stomper »

Here is an article with some interesting specs.
Pretty low input impedance.

http://www.nady.com/news/gp_1979.pdf

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Post by Dirk_Hendrik »

Wow. Something I really never heard off.

Seems a little that this Dallassolo guy is creating it's own hype. And does a pretty good gob at it.
Sorry. Plain out of planes.

http://www.dirk-hendrik.com

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Post by sinner »

Does anyone had a chance for underskirt checkup of the pedal version?

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modman
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Post by modman »

found something of a gut shots, but not much to go by
Attachments
Schaffer Replica plexi gut 1
Schaffer Replica plexi gut 1
Schaffer Replica plexi gut 2
Schaffer Replica plexi gut 2
prototype board Schaffer Replica
prototype board Schaffer Replica
G93R1209-211x300.jpg (19.49 KiB) Viewed 3408 times
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Post by gigidv »


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Post by FuzzMonkey »

gigidv wrote:I've found this :)
hope it helps

http://files.effectsdatabase.com/gear/p ... to_001.jpg
I wonder if the bypass method is akin to mictester's scheme?

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Post by gtrguy »

FuzzMonkey wrote: I wonder if the bypass method is akin to mictester's scheme?
Using a relay you mean? Pretty common... or am I missing something? I just glanced at the pic...

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Post by FuzzMonkey »

gtrguy wrote:
FuzzMonkey wrote: I wonder if the bypass method is akin to mictester's scheme?
Using a relay you mean? Pretty common... or am I missing something? I just glanced at the pic...
Yes. But driven by a SPST switch and what looks like a two transistor circuit; could be similar to this:

Image

Courtesy of the thread below:

https://www.freestompboxes.org/viewtopic.php?f=13&t=13295

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Post by tiococo »

Guys
Ive found this
They say in the page that since theyre publishing the PCB they have taken counter measures for the tracing to be ineffective. But with these photos we are back in the game of realizing what does it do. We can figure almost everything
Regards
Attachments
pedal-prototype.jpg
replica-pcbs2.jpg

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EddieTavares
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Post by EddieTavares »

Guys, some months ago I was thinking a little about this pedal after I read in some sites that this gadget is a compressor and expander with some equalization and boost improvements, I thought about post a reply but I decided to wait a little because probably the schematic would be posted in a little... Ok, I'm still waiting.

What sollo dallas does is what dbx system does in tape recorders and others ciruits such as digital delay/reverb to avoid hiss:

Image

Image

In the first picture atached by tiococo there a dib-16 IC next to the foot switch, there is caps in the pins 1, 2 and 3 like NE571 in compressor configuration:

Image

What do you guys think about?

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EddieTavares
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Post by EddieTavares »

Ne571 as compressor:

Image

And possibly a one of that in the PCB, three yellow caps connected to the pins 1, 2 and 3 as in the schematic above:
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What is this big dip-16 IC???
What is this big dip-16 IC???

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apollomusicservice
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Post by apollomusicservice »

NE571
SA571

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Post by EddieTavares »

I tried to link this image twice:
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NE571 as compressor
NE571 as compressor

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Post by clintrubber »

Stating/or possibly repeating-ting-ing-ng-g the obvious:

The logical thing to do it to listen which BBD-based analog delay with a bypassed BBD & the associated pre- & post-filtering comes closest in sound to the SVDS.

Bye

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Post by EddieTavares »

That is what I think it is:
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Sollo 2.jpg

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apollomusicservice
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Post by apollomusicservice »

EddieTavares wrote:That is what I think it is:
Instead input, output volume boost.

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Post by FuzzMonkey »

I'm a big AC/DC guy so it's good to see some movement with this thread. Keep it up guys!

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Post by apollomusicservice »

Many help would if someone has this device and if wish to make and share more inside photos.

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Post by Saruman »

EddieTavares :applause: :applause: :applause:

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