Wampler Sovereign Distortion  [traced]

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lukatosh
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Post by lukatosh »

this was supposed to be posted here... sorry :( ...

just couldn't delete the topic posted in modern effects

anyway...have you seen this?



it sounds just great!

from wampler website:
It has a mid control that is admittedly borrowed from other great Wampler pedals like The Pinnacle, but this one is refined, less fussy and instantly gratifying over the full range of its sweep

Check this out...From youtube...5 transistors (maybe j20, used often), power mosfet for polarity protection, and a JRC4580D... no onboard pots names/values :cry:
Attachments
sovereing.PNG

jymaze
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Post by jymaze »

It looks like a BMP tone stack with a variable mid pot (see MI Audio Tube-Zone for an example).

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Post by jymaze »

So my best guess is:

- 4 cascaded JFET gain stages, the 5th being a buffer before the tone stack(see Dr Boogey)
- a BMP tone stack with variable mid pot (see Tube Zone)
- an output opamp buffer to recover the loss of amplitude (see Pinnacle II LE)
- the bright switch would add a bright cap somewhere around the gain pot (think Marshall amp)
- the boost switch changes the voltage dividing network between stage 2 and 3 (probably)

I have been thinking about making a Dr Boogey with a BMP tone stack with mid control for a long time. It seems I was not the only one.

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culturejam
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Post by culturejam »

Is that an opto isolator IC at the top of the board (4 pins)?

lukatosh
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Post by lukatosh »

from wampler tweed 57 topic...
Actually it is the polarity protection. Read this article by R. G. Keen. The advantage of this method is the very low voltage loss across it, as opposed to usual series diode which eats around 0.6V.

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Post by okgb »

What does the name suggest ? ??

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Post by Ice-9 »

culturejam wrote:Is that an opto isolator IC at the top of the board (4 pins)?
It's more likely a fet for polarity protection (diode next to it as well.)

OOps someone already said this. :slap:
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !

No silicon heaven ? preposterous ! Where would all the calculators go ?

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Post by indyguitarist »

jymaze wrote:So my best guess is:

- 4 cascaded JFET gain stages, the 5th being a buffer before the tone stack(see Dr Boogey)
- a BMP tone stack with variable mid pot (see Tube Zone)
- an output opamp buffer to recover the loss of amplitude (see Pinnacle II LE)
- the bright switch would add a bright cap somewhere around the gain pot (think Marshall amp)
- the boost switch changes the voltage dividing network between stage 2 and 3 (probably)

I have been thinking about making a Dr Boogey with a BMP tone stack with mid control for a long time. It seems I was not the only one.
nope! ;)

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Post by jymaze »

Thank you for the dream-crushing Mr Wampler... :wink:

Maybe mu-amps then...

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Post by lukatosh »

up!

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Post by mrkaploca »

jymaze wrote: Maybe mu-amps then...
Most certainly, judging by the amount of gain available...

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Post by thn.technik »

any news? somebody have this pedal? maybe some pics for trace ;-)

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Post by Mrdorbe »

i'm really interested in building one on my own.. did anyone trace this circuit or made a layout? thank you.

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Post by Nacho5 »

I'm very interested in build one. Did anyone trace this circuit or made a layout? thank you.

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modman
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Post by modman »

this:
wampler souvereign gut shot
wampler souvereign gut shot
[
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roseblood11
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Post by roseblood11 »

It would be really interesting to see this pedal retraced!
It started with a limited run for musiciansfriend, but it's easily available now.

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Post by Bloodman »

The monolithic circuit and parameters of the sovereign are very similar with the pinnacle

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Post by MoonWatcher »

Bloodman wrote:The monolithic circuit and parameters of the sovereign are very similar with the pinnacle
Indeed. It seems that there are a bit of similarities, in particular, with it and the Pinnacle LE. The latter was traced out in what I think was a Pinnacle II thread. So I went and dropped in the capacitor values for the LE, and then looked at the Sovereign. I tried to label what I thought might be the cap equivalents.

I figured that until someone has one to trace, that the next step would be figuring out the resistor values, and then they could be cross-referenced to the Pinnacle as well.

This seemed like as good a place as any to start. I hope it helps.
Attachments
Pinnacle LE - cap values added
Pinnacle LE - cap values added
Sovereign - speculated cap values added
Sovereign - speculated cap values added

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Post by Bloodman »

MoonWatcher wrote:
Bloodman wrote:The monolithic circuit and parameters of the sovereign are very similar with the pinnacle
Indeed. It seems that there are a bit of similarities, in particular, with it and the Pinnacle LE. The latter was traced out in what I think was a Pinnacle II thread. So I went and dropped in the capacitor values for the LE, and then looked at the Sovereign. I tried to label what I thought might be the cap equivalents.

I figured that until someone has one to trace, that the next step would be figuring out the resistor values, and then they could be cross-referenced to the Pinnacle as well.

This seemed like as good a place as any to start. I hope it helps.
I have already traced this pedal

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Post by Ice-9 »

Bloodman wrote:
MoonWatcher wrote:
Bloodman wrote:The monolithic circuit and parameters of the sovereign are very similar with the pinnacle
Indeed. It seems that there are a bit of similarities, in particular, with it and the Pinnacle LE. The latter was traced out in what I think was a Pinnacle II thread. So I went and dropped in the capacitor values for the LE, and then looked at the Sovereign. I tried to label what I thought might be the cap equivalents.

I figured that until someone has one to trace, that the next step would be figuring out the resistor values, and then they could be cross-referenced to the Pinnacle as well.

This seemed like as good a place as any to start. I hope it helps.
I have already traced this pedal
Smashing, I couldn't be happier for you. Thanks for sharing.
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !

No silicon heaven ? preposterous ! Where would all the calculators go ?

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