Wampler - Bad Monkey beaters, Triumph Overdrive and Phenom Distortion

[joecool85]

Brian Wampler has released his new take on the Bad Monkey overdrive - actually, two versions!  The Triumph Overdrive and the Phenom Distortion are 3 band EQ, toggle switch, crunch machines and apparently Josh Scott (JHS) loves them.


These pedals are listed for $99 USD.

https://www.musicradar.com/news/this-may-be-his-best-drive-bad-monkey-champion-and-jhs-founder-josh-scott-is-blown-away-by-wamplers-new-dollar99-overdrive-and-distortion-pedals

[phatt]

The Triumph Overdrive was impressive.
Smart move adding a decent tone control on a dirt pedal.
And designing one where the midrange actually works.
That's why I love my PhAbbtone so much as the mid control is very potent.
Humm, maybe he has been reading the forums and found my circuit.      Phil.

[joecool85]

The Triumph Overdrive was impressive.
Smart move adding a decent tone control on a dirt pedal.
And designing one where the midrange actually works.
That's why I love my PhAbbtone so much as the mid control is very potent.
Humm, maybe he has been reading the forums and found my circuit.      Phil.

I'm actually planning on building a PhAbbtone at some point.  You don't happen to have a PCB layout available do you?

[phatt]

Hi Joe,
        Sadly no as that hard drive died and took with it a lot of stuff. I do have some pcb pictures on CD somewhere but they are the early versions which were hand drawn and the early circuits are different.
It's not a hard circuit to layout as there are not many parts and only one chip.
Someone on another forum posted a perfboard layout of it, just let me know if you go in that direction and I'll post it.
Phil.

[joecool85]

Hi Joe,
        Sadly no as that hard drive died and took with it a lot of stuff. I do have some pcb pictures on CD somewhere but they are the early versions which were hand drawn and the early circuits are different.
It's not a hard circuit to layout as there are not many parts and only one chip.
Someone on another forum posted a perfboard layout of it, just let me know if you go in that direction and I'll post it.
Phil.

I'll keep you posted.  I have a few projects in front of it, so it could be a few months or more.  Thanks!

[phatt]

Hi Joe,
         Well after some digging into old CD's I did find this which may help you.
A screen shot of PCB layout for Version4, the one I made for my Pedal board.
If you want it to fit onto a standard pedal case then you will have rethink the layout as you can only fit 3 16mm pots side by side in a Boss size pedal case.

You can reduce the slope R1 for say 56k will give a little more bottom end but 68k seems to be about right to my ears.
As mine is on all the time I just used a simple flick switch instead of a stomp Switch. As there is enough info on the net for bypassing and battery setup I've left all that out of the Schematic.
Note;
 The Protection Diode (Orange) is in the wrong place on this layout, it should be in series before the resistor.
Also R000 is just a wire link.

I still have never been able to perfect KiCad it's a bit of a pain to work with but it was free and board size was not limited like Eagle so I persevered with Kicad.
Sadly now my Eyes are letting me down and I don't do much work on circuits but I still try to fix stuff for other muso's if it's not too fiddly.
Have fun with it. Cheers, Phil.
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[joecool85]

Is RL the expected load, or does there need to be a resistor there?

[phatt]

Yes RL is a resistor. RL is the left over from my simulation drawing. (It's R9 on the PCB)
I think it's mainly there as a discharge path, as long as it's high enough to not load down the signal then it's fine.
Phil.