question for all the electronics folks out there..

[Adam Johnson]

so I had this hairbrained idea...supposed I took a distortion pedal, and ran a jumper connecting the input and output jack together. would this allow the original signal to pass through, pedal on or off? Basicly leting me dial up some dirt while retaining the clean signal. pedal in question is a modded ds-1.

 

[Mosfed]

Basically you are looking for a cheap blend option?

I don't think it would work, but then again I am the last person who would really know from a technical point of view. Seems too easy. I feel like a bunch of us would have done this if it worked.

 

[Skrogh]

Nope.
As the output of the ds-1 is in phase with the input (roughly) you will just create a feedback loop.

You will either need to construct an external mixer (like the Ls-2, but could be simpler) or;
You can short the two legs of Q2 that connects to R13 and R14. When engaged this will mix in 50% dry (compared to bypass) with 50% distorted (compared to full volume before the mod).

If you are careful and just bride the two legs with a piece of wire (or maybe a switch?) you can easily undo this mod (cut the wire, flip the switch).

I'm referring to this schematic: http://www.hobby-hour.com/electronics/s/schematics/boss-sd1-super-overdrive.gif, but component markings should be on the pcb as well.

Best of luck

 

[Adam Johnson]

Nope.
As the output of the ds-1 is in phase with the input (roughly) you will just create a feedback loop.

You will either need to construct an external mixer (like the Ls-2, but could be simpler) or;
You can short the two legs of Q2 that connects to R13 and R14. When engaged this will mix in 50% dry (compared to bypass) with 50% distorted (compared to full volume before the mod).

If you are careful and just bride the two legs with a piece of wire (or maybe a switch?) you can easily undo this mod (cut the wire, flip the switch).

I'm referring to this schematic: http://www.hobby-hour.com/electronics/s/schematics/boss-sd1-super-overdrive.gif, but component markings should be on the pcb as well.

Best of luck

Thanks! I'll try this tonight, just bridge the legs with a wire. I'll let you know how it turns out.