Adding a DC jack?

[backtothefutile]

Hey all, I am entering this hobby very rusty from my electronics classes years ago, but am hoping that it will come back quickly. Before I get myself into any stompbox building projects, I would really like to take care of a nagging problem I've had with one of my favorite pedals. I love my old MXR Distortion +, but I hate that it has no DC jack. I have a scrap pedal lying around that I would like to take the DC jack from it to use in my MXR. How do I go about this? First of all, the DC jack in question also has an LED attached to it. I wouldn't mind also installing this if it is not difficult to wire, but it's not necessary. Here is a picture of the jack I would like to use:

And the MXR pedal is a bit of a mess of wires for it being only a two knob pedal, but I can follow the leads from the battery attachment to the board and input jack. Here is a picture of inside the MXR:

The pictures are terrible, I know, but I figured they really shouldn't be too important as I expect this to be fairly straight forward but it's been a long time since I've tinkered with these things and would like someone to tell me what I need to do to wire this up properly. I feel plenty confident in my soldering skills, just not so clear on the rest.
Thanks, and I hope to hear from someone soon, seems like a great forum with lots of help around!

[aron]

Check out the beginner project. It has ideas on how to do this:

http://www.diystompboxes.com/smfforum/index.php?topic=970.0

[Paul Marossy]

For starters, you'll have to replace the "bypass" switch to be able accomplish what you want.

[backtothefutile]

What if I wire the power jack I have from the spare pedal to the battery terminal without the led as described here:
http://www.generalguitargadgets.com/index.php?option=content&task=view&id=34&Itemid=67
But obviously with the power jack I have, less the led, rather than the radio shack part he lists?
I already have a onespot power converter that I plug into the battery terminal now to make it dc run, but its not installed in the pedal. I've found no convenient way to run the onespot cord without modifying the pedal, so I figured if I was going to mod the pedal casing that I should just properly install a dc jack into the pedal, rather than the onespot converter. Just looking for the easiest way to do this, the led is far from a necessity!

[MmmPedals]

Check this out
http://www.generalguitargadgets.com/index.php?option=com_content&task=view&id=34&Itemid=27

[aron]

>I already have a onespot power converter that I plug into the battery terminal now to make it dc run

That's what I would do. Just get the one spot converter that has a 9V snap on the end. No modifying or anything.

[backtothefutile]

>I already have a onespot power converter that I plug into the battery terminal now to make it dc run

That's what I would do. Just get the one spot converter that has a 9V snap on the end. No modifying or anything.

You're missing the point, I believe. I want to upgrade from using that, or use it in a different way to install it into the case of my pedal. Otherwise, when I use the onespot, I have to leave the cover off the bottom of the pedal, or half open. I thought about modifying to just accomodate the onespot, but what's the point? I'd much rather just install the jack itself, it would look better IMO.

[ashcat_lt]

What if I wire the power jack I have from the spare pedal to the battery terminal without the led as described here:
http://www.generalguitargadgets.com/index.php?option=content&task=view&id=34&Itemid=67
But obviously with the power jack I have, less the led, rather than the radio shack part he lists?
I already have a onespot power converter that I plug into the battery terminal now to make it dc run, but its not installed in the pedal. I've found no convenient way to run the onespot cord without modifying the pedal, so I figured if I was going to mod the pedal casing that I should just properly install a dc jack into the pedal, rather than the onespot converter. Just looking for the easiest way to do this, the led is far from a necessity!

I did this with my Big Muff, and it works great!  I wouldn't bother with the LED, but I guess that's up to you.

One thing about this, though:  it's quite likely that this pedal - expecting to always run of the relatively clean (as in, noise free) power from a battery - doesn't have much in the way of power supply filtering.  You'll probably want a cap across the PS leads.  I think I did that, but don't remember the values.