madbeanpedals::forum

Projects => Build Reports => Topic started by: jkokura on March 23, 2012, 05:34:03 PM

Title: JMK Dirtbag
Post by: jkokura on March 23, 2012, 05:34:03 PM
Finally got this thing going. It's been a long process. I expected to build two of these, but looks like I'll have a fully populated spare board for someone else if they want!

I ran into issues because I built the enclosure with top mounted jacks. Obviously, that wasn't the best idea because the jacks then run into issues with the board and the parts on the board! I found a way to make it work, leaving out some sockets for some ICs and putting some caps on the bottom of the board. I also had to bend some of the lugs on the jacks around, and squeezing the jacks into their holes took more muscle than it should have. I'm running the board with a LT1054 chip on a Road Rage board, so it's got the full 15V hitting it. The finish isn't perfect because of my struggles to get it in. Some of the clear coat on the top has become scratched up around the jacks and pots and switch. Ah well, cest la vie.

I've just got it biased, so at this point I really can't say if it sounds awesome or not, but I plan to use it fairly often. Big thanks to the guy I got the chips from (you know who you are) because the PaulFreeJazz guy gave me junk.

(http://img204.imageshack.us/img204/6011/imagektd.jpg) (http://imageshack.us/photo/my-images/204/imagektd.jpg/)

And the Guts.

(http://img859.imageshack.us/img859/1771/imagesttf.jpg) (http://imageshack.us/photo/my-images/859/imagesttf.jpg/)

And the Demo.



Hope you've enjoyed!\

Jacob
Title: Re: JMK Dirtbag
Post by: bangerang101 on March 23, 2012, 05:57:31 PM
Jacob,

This build is awesome! Looks like a perfect DMM build to me... The jacks look fine to me, as well.

Incredible build Jacob.
Title: Re: JMK Dirtbag
Post by: DutchMF on March 23, 2012, 06:27:21 PM
Very nice! What are those trimpots you used? They look so good! I know nobody sees them, but I'd like them just for knowing they are there...... Not going to buy the populated board from you, though, because that's the part I like most about building. And props for the JMK twist on the EH-artwork!

Paul
Title: Re: JMK Dirtbag
Post by: plesur on March 23, 2012, 07:43:51 PM
Looks really nice Jacob.

I did top jacks on mine too and run into problems picking up the clock signal on the tip of the input jack. Is that the chip that you removed the socket for?
Title: Re: JMK Dirtbag
Post by: gtr2 on March 23, 2012, 07:50:35 PM
Double thumbs up Jacob!    ;)

Josh
Title: Re: JMK Dirtbag
Post by: jkokura on March 23, 2012, 07:52:04 PM
I put the TL062 and CD4049 right on the board, no sockets.

Thanks guys!

Jacob
Title: Re: JMK Dirtbag
Post by: nzCdog on March 24, 2012, 12:08:10 PM
Very nice, can't even tell you had problems that's for sure!  And you've answered my question on the top mounted Jacks, sounds like a toughie for this enclosure... nice job Jacob!
Title: Re: JMK Dirtbag
Post by: jonrhee on March 24, 2012, 05:04:53 PM
That's awesome, I had the same issue, should have gone with the 1590BB tall.

paulfreejazz got me too.
Title: Re: JMK Dirtbag
Post by: Scruffie on March 25, 2012, 10:45:13 AM
Quote from: DutchMF on March 23, 2012, 06:27:21 PM
Very nice! What are those trimpots you used? They look so good! I know nobody sees them, but I'd like them just for knowing they are there...... Not going to buy the populated board from you, though, because that's the part I like most about building. And props for the JMK twist on the EH-artwork!

Paul
Phier is it? You can buy them at Tayda, think the code is 3362?

Nice build though Jacob... makes me wonder if I can get a battery in there with a charge pump too...
Title: Re: JMK Dirtbag
Post by: jkokura on March 25, 2012, 02:35:21 PM
Yes, the 3362s from Tayda.

I think you could get a battery in there, but probably not with the charge pump. I would do that with a 3205 build maybe.

Jacob
Title: Re: JMK Dirtbag
Post by: Scruffie on March 25, 2012, 06:55:28 PM
Quote from: jkokura on March 25, 2012, 02:35:21 PM
Yes, the 3362s from Tayda.

I think you could get a battery in there, but probably not with the charge pump. I would do that with a 3205 build maybe.

Jacob
Last time I got a charge pump with a battery in where it didn't belong I made a vero layout with everything flat including the caps and managed to slip it under the board, hard as crap to wire and get in but I did it.
Title: Re: JMK Dirtbag
Post by: shawnee on March 26, 2012, 11:32:35 PM
I may be interested in the spare board Jacob. Please send me a PM if you want to sell it. Thanks.
Title: Re: JMK Dirtbag
Post by: jkokura on March 28, 2012, 10:17:51 PM
Demo video up...



Jacob
Title: Re: JMK Dirtbag
Post by: nzCdog on March 28, 2012, 11:06:03 PM
Sounds great!  Gotta be happy with that
Title: Re: JMK Dirtbag
Post by: jkokura on March 28, 2012, 11:06:47 PM
Yeah, I am. I was hoping it would turn out that way. This one is going on the board for sure!

Jacob
Title: Re: JMK Dirtbag
Post by: alanp on March 28, 2012, 11:13:32 PM
That sounds bloody amazing!

Is that a trem before it? Or is it just the Dirtbag on it's own?
Title: Re: JMK Dirtbag
Post by: jkokura on March 29, 2012, 04:39:13 AM
Quote from: alanp on March 28, 2012, 11:13:32 PM
That sounds bloody amazing!

Is that a trem before it? Or is it just the Dirtbag on it's own?

I know right? I'm smitten with the sound. There are few pedals I really go nuts for, but after tweaking in that sound I know I'm in love...

It's just the Dirtbag. That's it. It's going on my Pedalboard after my Empress trem and before my Strymon Timeline. I can't say for certain, but I doubt it'll move anywhere.

Jacob
Title: Re: JMK Dirtbag
Post by: gtr2 on March 30, 2012, 12:14:53 AM
I never had a DMM original, but I can see why this delay is the one all other delays are rated against.   :)

Nice demo by the way.  I love using controlled runaway repeats as well.

Josh
Title: Re: JMK Dirtbag
Post by: Jargo on March 30, 2012, 11:49:11 AM
Thank you for wearing shoes! nice demo