Messages

Hi, all, Brian in particular,

I was wondering, due to the fact that there's no way I'm ever going to get my hands on any of the short run projects before the other filthy apes here snag them, would you consider some sort of ridiculous contest for just one of each of these short run projects?

Ie.
- Write a song about monkeys.
- Caption for a stupid picture
- ID a Madbean pedal project by sound sample alone
- Write a haiku based on the project name (a Laserwolf Haiku... hilarity ensues...)

Hell, I dunno.  It would be fun and would give some of us sloths a shot at a limited run board.  I'd be happy to win even paying full price and shipping just to get my hands on one.

...then again, maybe I just need to get out more.

Anyways, I love the projects.  Madbean for life, and shit.

Oh, I have something special in store for this.  It might be extraordinary... it might end up a shameful mess... either way it'll be fun. 

Watch this space for the Cthulhu Chorus.

or Sorcery!

That was it   When I slopped solder between those two points and couldn't get it all out from between them, I caused myself a serious pain in the butt by scraping at it.  A little glob of solder and it's working nicely.

The agony... the ecstasy... the Porkbarrel.

Thanks, guys, I really appreciate the help.

Bret, yep I think we're looking at the same thing, except I think it's actually a solder crevasse that needs a bridge now

I think I might have spotted the problem.  I *think* (I'll need to look at it closer when I get my hands on it) that pin 5 of MN3007 connects to one of the horizontal links... initially I had a drop of solder glob between the two (which I realize now wouldn't have mattered since they are connected in the pcb circuit) and after trying everything else to remove the potential solder bridge, I scraped it clean (you can see this in the "solder-side" picture) which I think might have broken the connection between the two points completely... again, I'm at work right now, so I might be going down the wrong track, but if that link goes to ground, it would definitely explain this.

I appreciate the feedback and I plan on putting it to use when I get home from work.  Thank you!

[Pork Barrel]

Pork Barrel
I don't see a version, but I just got it a couple of days ago.

Problem:
No Chorus effect, just dry signal through circuit.

Steps taken to resolve
Double checked all parts and orientation, used a capacitor tester on each cap before using, replaced MN3007 and MN3101 with a known good set that were in another build (vero CE-2 pedal) and working perfectly, checked for solder bridges and cold joints, took voltage measurements, tried fresh batteries, tested signal going into MN3007 and coming out, tried sacrificing a chicken to the voodoo lord Goopaloopa (didn't work for the circuit, but it did get rid of a wart and might have cursed an irritating co-worker).

No parts substitutions (unless you count using tantalum caps instead of electrolytic), all per the build guide using MN3007 and MN3101.

Details:

PLEASE HELP...  I'm a fairly experienced pedal builder.  So far, just from Mad Bean, I've successfully built the Zero Point SDX, Cavedweller, Smoothie, Bloviator II, Sharkfin, Stage Fright, Current Lover, Harbinger One, and Collosalus, but I have tried TWICE to build a Pork Barrel and I get the same problem.  I get a good strong non-effected signal through the circuit and that's it.  The Depth and Rate don't seem  to do anything.  I cannot figure out what I seem to have done wrong both times.

The circuit is not boxed and I do not have it routed through a stomp switch. 

R1 is empty.  No resistor and no link, per the build instructions for using the MN3007 chip.

D4 is empty.  No resistor and no link, per the build instructions for using the MN3007 chip.

I get a signal going in Pin3 of the MN3007 but nothing coming out of Pins 7 or 8 (it might just be my ears playing tricks on me or maybe the slow creeping insanity of this project going tango uniform twice... but I think just *maybe* I hear a barely audible effect when I audio probe Pin 7 or 8 ).

I did the horizontal links per the instructions for using an MN3007.

I've tried the entire scope of the the trim pot and still no effect.

Here are my voltage measurements.  This is with the trim pot in the middle, Rate turned down to catch the fluctuating voltages and Depth maxed to get as full a scope of what it's doing as possible... that might be complete crap but it sounded reasonable to me.  So, anyway:

tl062
1: 0.74 - 8.8
2: 4.5 - 4.9
3: 2.5 - 7
4: 0
5: 4.5 - 4.9
6: 2.74
7: 2.5 - 6.9
8: 9.5

JRC4558D
1: 4.8
2: 4.8
3: 4.8
4: 0
5: 4.8
6: 4.8
7: 4.8
8: 9.5

MN3101
1: 9.25 - 9.45
2: 4.8 - 5.2
3: 0
4: 4.8 - 5.2
5: 0.35 - 0.82
6: 7.5 - 8.3
7: 3.0 - 3.7
8: 0.62

MN3007
1: 9.4
2: 4.8 - 5.4
3: 4.02
4: 0.62
5: 8.7 - 8.9
6: 4.8 - 5.3
7: 8.7 - 8.9
8: 8.7 - 8.9


I AM using the "Two-for-one" LFO indicator/Depth mod with a 22k resistor.  The LED pulses like it should and changes tempo with the rate knob.  So I lied above, the Rate knob does do something. 

I ended up tossing my first attempt at this in the trash.  Just now ordered another to try it again.  I need forum mojo.  Help me O-madbean-wan Kenobi, you're my only hope. 

Oh, yeah, pictures: