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As someone who builds a fair amount of pedals and has a rotating stock of parts at any given moment, I just wanted to point out that the shopping lists that Madbean put in the new build docs ARE AMAZING. Thanks, Brian!

WOW. I am super impressed with the sound of this delay. The echo and dwell controls are quite interesting and yield awesome results. And, given the small footprint, I could theoretically have three of these on my board preset to various settings and not feel guilty. 

Anyway, as promised, the wibbly wobbly timey wimey Tardis:


Mid-wiring:


Ready to seal the lid:


Using these normal-sized components is NOT recommended. Notice the standing resistors? The flying cap? Hell, there's even a resistor teepee in there. I'm now prepared to order the proper parts for all the forthcoming baby boards! 

...Madbean kills a Stark. 

So, I absolutely love my Cosmo. I've been lamenting about not being able to have one on my mini board, but now it may be possible:




Still working on a layout to fit five 9mm pots in a 1590A... one may have to end up on the side. The ones used on the breadboard certainly won't fit!

The first of my new mini builds, Madbean's LaVache. It has a 2n5088 in it for now, going to have to wait for my next parts order for some 2n3565's. Diodes are 1n914 and Bat41's. Enclosure is gloss black cherry from PPP, knobbies from Mammoth.

Guts before installing the board:

Guts w/ board:

It sounds great - good dirt w/ the diode switch up or down (which introduces one or two of the Bat41's) and cleans up well. The boost switch basically makes my amp explode. Unfortunately, the violet LED I put in this totally clashes with the cherry enclosure so I'm going to have to pull it...

Next mini builds will be Soldersound's delay, trem, and phaser!

Any suggestions? I'm looking for short/stubby electros to stuff in some 1590A projects. My first instinct is Mouser, so if you have a part # please share!

Just threw together a LaVache last night using the new board, but I am without a 2n3565. It sounds pretty good already with a 2n5088, so I can't wait to hear the 2n3565.

While I'm waiting for my next parts order to come in, are there any other suggestions to try with the LaVache? Or, should I just be patient and wait for the 2n3565?

For the record, the new board fits in a 1590A enclosure quite nicely (without a second stomp for boost, I wired it to a SPDT switch).

I've been trying to debug my Green Bean board for the past few days without any improvement. After I populated the board, I hooked it up to my breadboard. Boy does it rock! Too much, in fact. I seem to be at full gain, regardless of where the pot is set. First thought was that it's a bad pot. Before desoldering, I checked the resistance over the sweep of the gain pot. As expected, it was wide open regardless of the setting of the pot. I pulled the pot, but out of the board it's functioning properly. I tested another gain pot to make sure it was good and installed it. Same problem - it also reads like it's turned fully clockwise, no matter where I turn it. After that, here's what I've tried:

Confirmed all components are correct values
The only substitute is a 2kB pot for tone
Reflowed all joints and checked for any solder bridges
Tried different ICs

While checked continuity and voltages, a clipping LED lights when I touch pin 2 of the IC and various other components (only when the clipping switch is set to the LED side).

Here are the voltages I'm getting from the IC and transistors:

JRC4558D
1.84
4.56
.40
0
.94
2.01
2.01
8.91

Q1
1.55
0
8.9

Q2
1.77
0
8.88

Power provided by a 1spot supplying 9.53v.

The volume and tone pots are functioning properly. Anybody have some pointers?

My Aquaboy is more than a little dirty and, being relatively new at this, I'm hoping for some help troubleshooting. It's built using the Cool Audio chips, using all the values supplied with Madbean's "V3205 Version" parts list. I've triple-checked all values, wiring, etc. and reflowed all the joints. It works, just dirtier and feedback-ier that it should be. Here are the voltages:

Pos lead @ jack: 9.5
9v in @ board: 9.5
Ground in @ board: 0

V3205D
1: 0
2: 2.15
3: .95
4: .96
5: 3.54
6: 2.16
7: .03
8: 2.22

LF353N
1: 4.74
2: .19
3: .30
4: 0
5: .80
6: .28
7: 4.75
8: 9.5

V571D
1: .21
2: .22
3: .22
4: 0
5: .92
6: .07
7: 2.96
8: 1.01
9: 1.01
10: 0
11: 0
12: .91
13: 9.5
14: 0
15: .23
16: 0

V3102D
1: 3.24
2: 2.16
3: 0
4: 2.15
5: 1.68
6: 1.88
7: .01
8: 2.22

Q1
C: 9.5
B: 0
E: 2.82


Q2
C: 9.5
B: .08
E: 2.27


Q3
C: 9.5
B: .09
E: 3.06


Q4
C: 9.5
B: .14
E: 2.56