JHS Pedals Overdrive Preamp

thesmokingman said:
looks like jeffy is an ignore ... I don't have the patience to spell it out for you so you go ahead and buy the pedal and tell me how wrong I am ... jesus I watched the same video everyone else did
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Like many others, I just want to see what’s under the hood. If it’s bullshit then it’s bullshit. And, yeah, it’s likely a very simple circuit so, f$&@ it, I might just buy one and pop it open to see what can be had from it.

I’m surprised this thread got so heated. Why? All I’m asking is whether this pedal is worth looking into and whether or not there is an existing trace of the original pedal it’s based on. Evidently not.
 
scheffehcs said:
I take both sides too, would love to see it traced if only to confirm it’s the same shit, different marketing.
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Exactly. That’s all I’m looking for. Might just trace the damn thing myself. I could use a modded 250 for bass. This very well could be a great circuit for that.
 
Here are gut shots of the original:
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DigiTech

Really clean big box DOD Overdrive Preamp showed up in a local shop. From my research it looks likely that it is a 1972. This should help to end some of the myths that the 250 is copy of the MXR D+.
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I didn’t pay attention to the whole JHS video, but what was the explanation of the fact that the pedals creator said it was an MXR copy, yet this large box version is from pre-MXR?…
 
jeffwhitfield said:
Like many others, I just want to see what’s under the hood. If it’s bullshit then it’s bullshit. And, yeah, it’s likely a very simple circuit so, f$&@ it, I might just buy one and pop it open to see what can be had from it.

I’m surprised this thread got so heated. Why? All I’m asking is whether this pedal is worth looking into and whether or not there is an existing trace of the original pedal it’s based on. Evidently not.
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I think it’s just good conversation with passionate about what we do over times, it’s all good. I’m actually interested in what makes it tick, too. I’m also looking at the gray channel, and making a clone of it as well..
 
jeffwhitfield said:
Exactly. That’s all I’m looking for. Might just trace the damn thing myself. I could use a modded 250 for bass. This very well could be a great circuit for that.
Click to expand...
Something like This
Does the DOD 250 have 3 1M Resistors???
Wait!, There maybe an Electrolytic missing & Resistors??? :

DOD Overdrive Preamp PCB.jpg
 
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Ugh, who cares. If you look back through old threads it’s pretty clear why JHS doesn’t give back to the community. He’s been doing the same stuff his whole career and people in the diy community have been calling him out for a long time. Don’t know why he would try to give back, it’s not like the community is friendly to him as a whole.

There’s some history there if you’re really bored. He was basically caught stealing others work and claiming it as his own.

Whatever at this point it’s all water under the bridge that happened a couple of years before I started doing this.

He is a master of marketing and I do appreciate his knowledge and some of his content, but he does rub me the wrong way at times. I remember feeling like he was trying to steal the Pedal Movie’s thunder when he made that musical that came out a month earlier.


The pedal in question does not contain any unicorn hairs or anything. I’m sure it’s a very slight variation of the pedal in question. Maybe it’s awesome, maybe in the mix with a band you’d never hear a difference.
 
Why do I suspect even the huge '75 throwback will be SMD?
In case one of the clipping modes is "germanium", no way it has germanium diodes in it, most likely Schottkies.
 
Matmosphere said:
Ugh, who cares. If you look back through old threads it’s pretty clear why JHS doesn’t give back to the community. He’s been doing the same stuff his whole career and people in the diy community have been calling him out for a long time. Don’t know why he would try to give back, it’s not like the community is friendly to him as a whole.

There’s some history there if you’re really bored. He was basically caught stealing others work and claiming it as his own.

Whatever at this point it’s all water under the bridge that happened a couple of years before I started doing this.

He is a master of marketing and I do appreciate his knowledge and some of his content, but he does rub me the wrong way at times. I remember feeling like he was trying to steal the Pedal Movie’s thunder when he made that musical that came out a month earlier.


The pedal in question does not contain any unicorn hairs or anything. I’m sure it’s a very slight variation of the pedal in question. Maybe it’s awesome, maybe in the mix with a band you’d never hear a difference.
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I don’t own any JHS pedals. I bought one but took it back due to a weird quirk. I think the reason I don’t own any is because virtually everything they sell is stuff I can build myself.

I don’t have much of an opinion of Josh. He seems like an ok guy. Everyone makes mistakes. I think if anything the way he gives back is by promoting other peoples stuff. He is constantly talking about pedals made by other people. So theres that.

Also, like a lot of other companies, he kind of turns a blind eye to the traces and PCB‘s made that copy his stuff.
 
I enjoy Josh’s videos sometimes, mostly because of his OCD and obsession with collecting pedals, which I can relate to, and because I did learn about some interesting pedals from them. I was never involved in his diy debacles so I have no opinion there either way. I do agree that he is a master of marketing and after all that’s good for him: he built a successful company that employs people which is a good outcome I think. That doesn’t mean I feel the need to buy his pedals (I do own one), but I do feel like a lot of people appreciate them a lot, especially when they have no clue or interest in diy, which is perfectly fine IMO. Anyways, just rambling on there, I’d like to see the circuit too! :)
 
From the jhs link, “The internals featured a floating/loose hand-etched PCB and the same DOD 250 circuit, but with a few changes.”

I assume that means part selection, not circuit changes. It’ll be interesting to see inside one to verify.
 
Dan M said:
From the jhs link, “The internals featured a floating/loose hand-etched PCB and the same DOD 250 circuit, but with a few changes.”

I assume that means part selection, not circuit changes. It’ll be interesting to see inside one to verify.
Click to expand...

And it seems that the part selection wasn’t intentional: the used whatever they could out of old computers.
 
Dan M said:
From the jhs link, “The internals featured a floating/loose hand-etched PCB and the same DOD 250 circuit, but with a few changes.”

I assume that means part selection, not circuit changes. It’ll be interesting to see inside one to verify.
Click to expand...
Obviously they're referring to the original pedal they based theirs on...not the new one. I'm hoping that they didn't use a bunch of SMD components. If so, getting a good trace might prove more difficult. Hard to get a good read on SMD components when they're on the board...and I'm not gonna destroy the pedal in the process. Figure if I can get a decent trace and ID all the components then it can be replicated pretty easily. Shouldn't be complex at all. Heck, I'm betting they used mostly through-hole for this one. Guess we'll see. :P
 
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