Wampler Pedals - Triple Wreck  [traced]

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Wampler Pedals - Triple Wreck

Postby mrkaploca » 10 Oct 2010, 02:00

Although this is insufficient material to trace from,it is all I could find...
Image

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Re: Wampler -Triple Wreck-

Postby MoonWatcher » 10 Oct 2010, 12:11

Interesting that the LM386 spot on the board is vacant. What is the source of the photo - do you know?

I'd think that that chip would be how the pedal is capable of the loose and fuzzy tones.
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Re: Wampler -Triple Wreck-

Postby mrkaploca » 10 Oct 2010, 12:36

MoonWatcher wrote:Interesting that the LM386 spot on the board is vacant. What is the source of the photo - do you know?

I'd think that that chip would be how the pedal is capable of the loose and fuzzy tones.

I think adding the right capacitor to a JFET's source pin could also produce those fuzzy tones...
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Re: Wampler -Triple Wreck-

Postby quaternotetriplet » 11 Oct 2010, 05:46

im interested on this one.
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Re: Wampler -Triple Wreck-

Postby hewie » 11 Oct 2010, 16:50

quaternotetriplet wrote:im interested on this one.


Definitely. I had one of these units a year or so ago and it was quite fantastic, not sure why I got rid of it. Wouldn't mind fiddling around with this one.
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Re: Wampler -Triple Wreck-

Postby Sikor » 12 Oct 2010, 13:10

I have Triple Recstortion (which is Triple Wreck is based on)
and can do a photo of the guts if You guys are interested :)
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Re: Wampler -Triple Wreck-

Postby fuzzmax » 12 Oct 2010, 17:13

totally!! :D and if you appear to have a plextortion or super plextortion, that would be awesome too!!
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Re: Wampler -Triple Wreck-

Postby caspercody » 12 Oct 2010, 22:04

I also am very interested in this one. Would love to build this, so if anyone can make a schematic, thanks in advance! I think I read this was similar to the op amp Big Muff?
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Re: Wampler -Triple Wreck-

Postby caspercody » 13 Oct 2010, 22:08

DahakaNishoba,
The Pinnacle project is here:

viewtopic.php?f=54&t=8428

I have built this using a BSIAB2 pcb, and changing the values in the greyed areas (on the schematic). And than adding the large greyed out area at the end on a seperate pcb.
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Re: Wampler -Triple Wreck-

Postby DahakaNishoba » 13 Oct 2010, 22:54

Ye ye already have all files for the pinnacle...
Just asking for personal experiences for both on a fat strat
Love the sobd of the pinnacle but the triple looks way more usable in a lot of ways
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it's Magic, in Technology
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Re: Wampler -Triple Wreck-

Postby indyguitarist » 28 Oct 2010, 19:07

I'll save ya some trouble.
All IC based except for the boost stage, which is a npn boost into a big muff style control (cream/crunch). The boost hit's the front end of the distortion circuit.

input - buffer - 1st gain stage similar to guv'nor - inverting gain stage - diodes to ground - non inverting gain stage with diode soft clipping - baxandall - non inverting gain stage - twin t filter - inverting gain stage - LP filter on toggle - output

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Re: Wampler -Triple Wreck-

Postby jimini » 28 Oct 2010, 22:25

Thanks for the info

Now at least I know why I play your pedal every day(well,almost)

The guvnor was on my pedalboard too,some time ago.

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Re: Wampler -Triple Wreck-

Postby caspercody » 02 Nov 2010, 16:44

Thanks for the info Brian! Did you use a 386 in this project? The picture shows a empty spot where one would go? Curious where the NPN boost goes in your explained stages (input - buffer - 1st gain stage....)?
Thanks
Rob
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Re: Wampler -Triple Wreck-

Postby MoonWatcher » 02 Nov 2010, 17:40

caspercody wrote:Thanks for the info Brian! Did you use a 386 in this project? The picture shows a empty spot where one would go? Curious where the NPN boost goes in your explained stages (input - buffer - 1st gain stage....)?
Thanks
Rob


I know someone who got one early on, and IIRC, his had the 386 installed. Putting it just about anywhere other than the tail end of the circuit does not seem to make sense, IMO. Remember that it was designed to be a power amp.

It wouldn't make much sense to put a tranny boost prior to the input buffer.

Since it's a double sided board, you can only trace what that side reveals from the photo. I don't recall the pinout of the 386, as I've never had much luck with using them (maybe that's why Brian didn't mention it - perhaps he no longer uses it in newer ones?).

Between the traces that we can see and the values of the resistors connecting the pins and leads of the op amps and trannies, you could probably work up a basic circuit based on the combination of traditional circuit elements that Brian provided. From there, it might make more sense just to "bridge the gaps" to taste, until someone want to provide more photos of their TW. IMO, cascaded op amp designs with multiple filterings (passive Muff blender/Baxandall/twin T/LP "tail end rolloff") really come down to preference - just gander at all of the mods for the MT-2.

...And we can see the clipping diodes, so it would be pretty straightforward to determine which ones are shunted to ground and which are in a TS style neg FB loop.

Just some things to do until we get more pics, unless Brian wants to offer more details.
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Re: Wampler -Triple Wreck-

Postby culturejam » 02 Nov 2010, 18:21

indyguitarist wrote:input - buffer - 1st gain stage similar to guv'nor - inverting gain stage - diodes to ground - non inverting gain stage with diode soft clipping - baxandall - non inverting gain stage - twin t filter - inverting gain stage - LP filter on toggle - output

Sweet jesus! That's like half of all possible dirt box tricks in one circuit! :lol:
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Re: Wampler -Triple Wreck-

Postby Sikor » 08 Nov 2010, 11:33

I now, I am late, but could do photo earlier :slap:

Here is my Triple Recstortion:

Image
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Re: Wampler -Triple Wreck-

Postby MoonWatcher » 09 Nov 2010, 13:10

What happened to the tranny boost that Brian mentioned? Is this a stripped down model (didn't know there was one)?

Those resistors look pretty clear in the photos - might be able to tell what is what just by making a list of their values and their proximity to the different op amps. For instance, the inverting stages are going to be more sparse. The initial stage will probably look very similar to what you have in a Guv'nor.

I'm guessing that all of the bigger caps are 1uF that are probably on the output of some of the op amp stages. If they are used as a HP filter, they will probably be connected to a small resistor to keep the HP adequately high. For instance, look for the semi-standard MT-2 type setup of something like 1uF/470R.

Twin T filters and Baxandall stuff typically "give themselves away" with groupings of resistors and caps that are duplicated, or "doubled and halved". Look at some generic examples to see what I mean.

If those photos could be labeled with cap values, that would provide a lot of answers as well, that would not require pulling the PCB out, most likely.

Edited to add: I can barely make out some cap values of 560pF, 470pF, etc. - those will almost always be in the neg feedback loops to bleed off some excessive top end, so they will give clues as well.
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Re: Wampler -Triple Wreck-

Postby hewie » 09 Nov 2010, 20:52

MoonWatcher wrote:What happened to the tranny boost that Brian mentioned? Is this a stripped down model (didn't know there was one)?


The photo posted is of the Triple Recstortion, which was the earlier limited release version, before the improved Triple Wreck.
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Re: Wampler -Triple Wreck-

Postby Sikor » 11 Nov 2010, 09:49

caspercody wrote:Thanks for the picture. Anyway to get one of the other side??



caspercody wrote:Actually, a picture of both pedals trace side what be great??!!

Thanks
Rob


Sure it will be great, but I don't think I can flip the board without desoldering, so it's not gonna happen :(
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Re: Wampler -Triple Wreck-

Postby MoonWatcher » 11 Nov 2010, 12:53

hewie wrote:
MoonWatcher wrote:What happened to the tranny boost that Brian mentioned? Is this a stripped down model (didn't know there was one)?


The photo posted is of the Triple Recstortion, which was the earlier limited release version, before the improved Triple Wreck.


:slap:

That shows you how much I keep up with some of these newer pedals. The single 3PDT should have been an instant clue.
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