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Projects => Tech Help - Projects Page => Topic started by: pietro_moog on July 20, 2014, 06:58:22 PM

Title: nucleon super fuzz does not work
Post by: pietro_moog on July 20, 2014, 06:58:22 PM
nucleon super fuzz does not work. the caps are new, transistors too (bc550), all the resistors are at the right place,
the switch is connected. but the thing doesn't work. are these pcbs not good? do they have flaws?
i dont' understand. there is no sound and everything looks good.
any advice?
Title: Re: nucleon super fuzz does not work
Post by: pietro_moog on July 21, 2014, 09:04:59 AM
post canceled.
Title: Re: nucleon super fuzz does not work
Post by: the3secondrule on July 21, 2014, 09:10:58 AM
A quick search shows a verified build here:
http://www.madbeanpedals.com/forum/index.php?topic=13461.0 (http://www.madbeanpedals.com/forum/index.php?topic=13461.0)

Maybe let's have your voltages eh?
Title: Re: nucleon super fuzz does not work
Post by: selfdestroyer on July 21, 2014, 09:46:57 AM
Quote from: the3secondrule on July 21, 2014, 09:10:58 AM
A quick search shows a verified build here:
[url][http://www.madbeanpedals.com/forum/index.php?topic=13461.0/url]

Maybe let's have your voltages eh?

Thats my build and it definitely works as it should. This build replaced my vero build and it sounds exactly the same. I have built 3 different Rockhorst layouts and had no issues with them.

Quote from: pietro_moog on July 21, 2014, 09:04:59 AM
cool. supercool.
i did some extensive tests today, and i found out that the power line is completely merged with the ground plan.
good design, very good design. these boards are a scam. the guy should be stopped.

I'm not sure if this was meant to be sarcastic or not but I think you are being a bit harsh about something that has so many variables. I mean, sure, there has been bad PCBs due to manufacturing before but I would not start off with "these boards are a scam. the guy should be stopped".

Hope you get a working build going as this is a great sounding pedal. If you still do not have a working pedal I suggest posting some pictures of the pedal and the voltages of the transistors. Also, did you try a audio probe to see where the output signal stops? Just some ideas.

Cody
Title: Re: nucleon super fuzz does not work
Post by: pietro_moog on July 21, 2014, 10:36:09 AM
yeah, you are right, i've been a bit harsh. but the thing is this, the board don't have a power line. every resistor is connected to ground. i've seen your build, but it looks like it is a different layout, maybe mine was the second revision. but the thing is that the board is unusable. i removed every component to see what could have been modified, but the power line does not exist. i just want a working super fuzz on a board. this one is not good.
Title: Re: nucleon super fuzz does not work
Post by: Rockhorst on July 21, 2014, 12:12:17 PM
Hi Pietro
[edited after Pietro edited. Thanks :)]

There's been no revision of the Super Fuzz board if I recall correctly, I've just made one prototype and then ordered a small bulk load of them. Post some pics and with combined efforts we'll sort out what's wrong with it.
Title: Re: nucleon super fuzz does not work
Post by: Rockhorst on July 21, 2014, 01:08:35 PM
I inspected one of the boards that I still have. The build doc on this is not super complete and with that in mind: what might be going on is that you mistook my silkscreen labeling of the power terminals. There's three square pads in the lower left corner of the board. The bottom two are ground, the top one is +9V. Maybe you've accidentally connected the +9V to the middle pad?

Also, notice in the schematic that the +9V pad is ONLY connected to R30. The top power plane is connected to the other end of R30. That should help with your troubleshooting.
Title: Re: nucleon super fuzz does not work
Post by: Tremster on July 21, 2014, 01:51:35 PM
Yes, I can confirm that Rockhorst is good people.
Rutger
- answered every email by me quickly and helpfully, no matter how stupid my layman questions were
- helped me debug by email patiently
- gave me three PCBs as a gift when I placed a larger order
- gave me a free expensive NOS germanium transistor as compensation when I had to wait for some time for him to verify a board, though I never said anything about it, and I was not the only one who got that
- is known on this forum as a guy who knows his stuff

My Superfuzz build works.
Title: Re: nucleon super fuzz does not work
Post by: Tremster on July 21, 2014, 02:24:25 PM
OK, the Superfuzz build doc does not have a wiring diagram. Maybe the names of the solder pads for the wires can get confusing if one's just used to "In, out, 9V, Ground".
Check the build docs for the Atomic Red, Blue or the M Theory to see how Rutger intended them.
Maybe that's it.
?
Title: Re: nucleon super fuzz does not work
Post by: playpunk on July 21, 2014, 02:48:21 PM
now I want a superfuzz
Title: Re: nucleon super fuzz does not work
Post by: Bret608 on July 21, 2014, 03:45:03 PM
Quote from: Tremster on July 21, 2014, 01:51:35 PM
Yes, I can confirm that Rockhorst is good people.
Rutger
- answered every email by me quickly and helpfully, no matter how stupid my layman questions were
- helped me debug by email patiently
- gave me three PCBs as a gift when I placed a larger order
- gave me a free expensive NOS germanium transistor as compensation when I had to wait for some time for him to verify a board, though I never said anything about it, and I was not the only one who got that
- is known on this forum as a guy who knows his stuff

My Superfuzz build works.

Let me add that my experience has been the same as Tremster's, except that I'm doing the Solar Flare rather than the Superfuzz. Rutger also has a nice demo of his Superfuzz out there--look for "Thoughts about Physics" on YouTube. If you can get it working, that'll help you know if the sound is in the ballpark as well.
Title: Re: nucleon super fuzz does not work
Post by: Rockhorst on July 21, 2014, 03:55:57 PM
Thanks guys :) This hopefully is comforting to Pietro. Now let's get that pedal pixed :) First thing is I REALLY want a picture of the PCB we're talking about. It might be that he's gotten a V1 Solar Flare (Fuzz Head) by accident, which had a design flaw. Anyway, until I see a photo, we're just guessing here.

Here's the video Bret is referring too:
Title: Re: nucleon super fuzz does not work
Post by: pietro_moog on July 21, 2014, 04:09:40 PM
let's put it like this: i'll keep my mouth shut and i will give this board another shot, a fresh build
Title: Re: nucleon super fuzz does not work
Post by: Rockhorst on July 21, 2014, 05:00:23 PM
No, photo please :) may save us both a lot of time and frustration :)
Title: Re: nucleon super fuzz does not work
Post by: pietro_moog on July 21, 2014, 06:00:13 PM
i don't have a camera right now, nor a fancy phone, just my mac. and the board is deconstructed.
i'll see what i can do
Title: Re: nucleon super fuzz does not work
Post by: timbo_93631 on July 23, 2014, 04:46:12 AM
I also built two with no issues at all, and the first was before the build doc was totally complete, going off the superfuzz schematics floating around the internet, the second I modded to Wattson EYF-6 spec (maybe good to verify you have the same PCB from my gutshot):
(http://2.bp.blogspot.com/-RbyAj32fRFE/U6w4jYs2kGI/AAAAAAAABgU/ZAFdlq2wqjA/s1600/P1060290.JPG)
Title: Re: nucleon super fuzz does not work
Post by: pietro_moog on August 02, 2014, 10:34:00 AM
so. i rebuilt my super fuzz and it doesn't work still. what really breaks my balls is that i used for it a 15€ enclosure which is really beautiful, but the pedal don't work. you guys all said this thing work. maybe it's me. i think i'll buy another one. we'll see. for now i'm out of my mind
Title: Re: nucleon super fuzz does not work
Post by: Rockhorst on August 02, 2014, 12:24:20 PM
Pietro, come on, hang in there. We all want to help you out and get your pedal working so you can put it in that beautiful enclosure. But you have to give us something to work with: give us some voltage readings from the transistors. And please get me a picture of your board as I requested earlier, because some of the things you said sound weird (like it not being the same board as SelfDestroyer had).

So again, I really want to help you out and so is everybody else over here, but we can't help you find the problem if you don't give us any real info. Murdog is having trouble with his board and made a topic about it. Keep an eye on that, there might be some good suggestions there that might work for your build. Also, if you're absolutely convinced that it's a faulty board, shoot me a PM and I'll send you a new one free of cost!
Title: Re: nucleon super fuzz does not work
Post by: Stomptown on August 02, 2014, 04:38:09 PM
Quote from: pietro_moog on August 02, 2014, 10:34:00 AM
so. i rebuilt my super fuzz and it doesn't work still. what really breaks my balls is that i used for it a 15€ enclosure which is really beautiful, but the pedal don't work. you guys all said this thing work. maybe it's me. i think i'll buy another one. we'll see. for now i'm out of my mind

It sounds like Murdog is having similar issues with things being tied to ground that should not be tied to ground. I would suspect a manufacturing error on these PCBs.  :'(
Title: Re: nucleon super fuzz does not work
Post by: Rockhorst on August 02, 2014, 05:48:13 PM
Working on it, I'll keep you all updated
Title: Re: nucleon super fuzz does not work
Post by: dannoceti on April 25, 2015, 05:12:09 AM
Did this topic ever get resolved? I built my nucleon super fuzz with a optical bypass switch, but all the lows were highpassed out, so I finally got around to putting in a regular switch and am having the same problem. I diagnosed the 9v pad shorting to ground before even knowing about this thread. I'm having the same problem and am wondering what was done to fix it or if it is fixable?


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Title: nucleon super fuzz does not work
Post by: dannoceti on April 25, 2015, 06:54:59 AM
UPDATE: I was able to fix it. Basically the Madbean standard wiring diagram doesn't work with this board. For some reason it shorts the 9v to ground. I rewired following rockhorst's photo and it works great. Seems like others were having some problems too, this is most likely the fix, use the wiring diagram pictured from rockhorst: (http://images.tapatalk-cdn.com/15/04/24/def5eda42faf578b8bbd96302b95d5e0.jpg)


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