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DIY Stompboxes => Building your own stompbox => Topic started by: FUZZZZzzzz on April 27, 2010, 04:53:12 PM

Title: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 27, 2010, 04:53:12 PM
Hi Guys!

Normally I'm just a spectator at this forum as I'm just beginning to understand electronics and stuff.
But I came up with something nice (in my own opinion ;)) when breadboarding.

I was looking for some nintendo sounds, like the FX Doctor 8bit and such and came up with something extremely easy and fun to built.

Here's a layout.. its kinda loud so maybe a volume knob would also be nice  ;D
I'll try to record some samples tomorrow (ill play some super mario for you all)

feel free to comment.. coz this is just based on trial and error.
(http://img11.imageshack.us/i/thingamabob.jpg/)
http://img11.imageshack.us/i/thingamabob.jpg/ (http://img11.imageshack.us/i/thingamabob.jpg/)
Title: Re: THE THING-A-MA-BOB (easy as pie homemade nintendofuzz)
Post by: sevenisthenumber on April 27, 2010, 05:01:33 PM
Very cool...
Is it noisy?
Title: Re: THE THING-A-MA-BOB (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 27, 2010, 05:13:27 PM
it can be.. i found some different cool things whilst playing with it.

1. if you only connect the output cable.. it makes noise on certain settings of the knob. (a bit atari punk console, if you wish)
but not really extreme.. only some bass and squeaks.

2. when connected.. with the knob set to zero.. youll find heavily gated fuzz.. only noisible when strumming low notes..
(this will also depend on the use of pickups, humbuckers will do more on lower settings)

3. higher settings will increase a broken nintendo like gated fuzz.. the higher notes will become more audible and the sound gets more sustain
when you get higher levels of the knob the sustain will increase and youll find more hiss but also some really nice 'synthetic' gated fuzz sound.

with the knob open 75% and over you can play fuzz chords that sound pretty cool like a cheap transistor radio. theres also a nice 'weird' decay on the higher notes.

the knob is very sensitive and you'll find some very cool sounds by playing with it (did i just say that? :))
it was put together before my gf made coffee so its very easy to give it a try.

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 27, 2010, 06:21:33 PM
i could not possibly let you guys wait for samples  ::)

there it is 128kb format mp3.
recorded straight into Logic (no xtra effect whatsoever)

http://www.mediafire.com/?yjzeqtzndqn
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 27, 2010, 06:40:41 PM
i just did some demo-ing of the more 'radio friendly sounds'. i did not use the farts and squeals  :icon_mrgreen:
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: glops on April 27, 2010, 08:30:12 PM
I like your soundclip.  Really cool for such a tiny board. 
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: sevenisthenumber on April 27, 2010, 11:15:50 PM
gonna build it tomorrow.  8)
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 28, 2010, 06:53:02 AM
thanks for the replies, guys! and thanks for viewing my layout (300 and counting)

something that easy is hard to keep for yourself. i would recommend you put a volumepot in there.. if you want to box it.
the recording was done with humbuckers but also got nice stuff on singlecoils.

let me know how you get on with building it. i used a 5.6nf greenie btw..

cheers!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: mnordbye on April 28, 2010, 08:44:37 AM
Wicked sounding! Imagine putting 3 or 4 in series.  :icon_evil:
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: defaced on April 28, 2010, 09:19:18 AM
I want to pair this with a random noise generator.  I think that would make some lovely disgusting sounds. 
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 28, 2010, 09:31:00 AM
i've tried it on guitar, theremin and drumcomputer so far..

guitar works great!
theremin gives a sounds of 200 dying babybirds.. (only good if you're into that sort of thing)
drumcomputer will be crushed but will sound a bit like a sample rate reducer with a low battery

so.. not everything will work great, but def worth a try ;)
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: sevenisthenumber on April 28, 2010, 01:13:48 PM
is it normal that the pot has some dead area near the end??
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 28, 2010, 01:40:29 PM
you mean when its almost closed? that depends on the source you use... the signal is heavily gated when its almost closed so not every source will give useful or even sound.
you could play with the resistor to the ground.. add different values, but personally i only had 1k 3.2k and 4.7k to try it with ;)

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 28, 2010, 01:43:48 PM
does it satisfy your expectations?
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: glops on April 29, 2010, 03:01:46 AM
Man, I want to play around with this.  Reminds me of Tim Escobedo's circuits because of its simplicity.  I currently have a Clari(not) on 1 breadboard and
a weird octave divider thing on another.  I wonder how this would sound as the 386 section in the Clari.  Will try tomorrow.....
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: linny1982 on April 29, 2010, 03:18:04 AM
this thing sounds cool. i'll have a pcb layout with volume done tonight but i'm moving on the weekend so wont be able to make it yet.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Top Top on April 29, 2010, 03:33:30 AM
Nice. Sounds somewhat like Tim Escobedo's PWM, but even simpler.

This actually seems like it could be a good building block for some other things, like cmos based divider/synth type stuff, because the output is so extremely squared off.

Is C2 an electrolytic? And if so, what's the polarity?
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on April 29, 2010, 09:04:06 AM
C1 = 5.6nf (greenie)
C2 = electrolyctic 10uf 25v

the C2 negative goes to the ground (shortest metal thingie)

On bassguitar you get the best result. our bassplayer made us want to go home when plugged in.. very synthetic and bitty.. nice!
mind you its loud!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: 1878 on April 29, 2010, 02:31:35 PM
It would be rude NOT to build this. Saturday morning is thing-a-ma-bob building time.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: isildur100 on April 29, 2010, 09:39:02 PM
Wow! so simple. nice!

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Taylor on May 01, 2010, 02:28:43 AM
This is pretty neat. I definitely applaud the fun-to-parts-count ratio. I think I'll build this in a box with a bunch of other mini wacky circuits (Tim Escobedo stuff especially).
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on May 01, 2010, 02:35:24 PM
thanks guys! Tim Escobedo has put together some nice designs.. i think i should actually try some of his circuits.. i have them on my hd
but never got to built them.. i like simple designs.. but mostly because im beginning to understand them.

if you guys built this i would def like to hear about it.. its good to know that im not the only one loving the broken sounding ones ;) and it gives me the enthousiasm
to spend more time on here sharing my ideas and to become better at understanding.

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: bulldozed on May 04, 2010, 08:33:05 AM
(http://i4.photobucket.com/albums/y137/embersofthedownfall/DSC05767.jpg)

I must've done something wrong - mine sounded all gnarly and buzzy like the sound clip.... then I put a poly 10uf cap in (instead of the electro that I had in there), and it sounds like an almost refined fuzz pedal now  :icon_redface:  ;D I'll take a video of my own when I've redone it on vero board - got a mini hammond case lined up for it and all. I like my stuff-up of the design... whatever it was that I did...  :D



Edit: Just for my curiousity, I went back and checked - and took a video of it (uploading to youtube now); putting a 100v poly 10uF cap in, instead of an electro, makes a hell of a difference. I reckon that I'll put in a small DPDT switch to flick between the cap types when I build it on vero  :icon_smile:


Edit 2: Video link...
http://www.youtube.com/watch?v=IBeDsBGzCeM
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Heemis on May 04, 2010, 09:05:33 AM
Are you sure that's a 10uf film cap you're popping in?  Looks much too small to be 10uf, especially at a 100v rating.  Maybe 100n?  Sounds fantastic though!  Definitely need to breadboard.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: bulldozed on May 04, 2010, 09:34:38 AM
Are you sure that's a 10uf film cap you're popping in?  Looks much too small to be 10uf, especially at a 100v rating.  Maybe 100n?  Sounds fantastic though!  Definitely need to breadboard.

Yeah, right as you are - 1uF... tiny writing hurts the eyes  :icon_redface:  The 'real' 10uF I have in my fingers is exactly the same size though  :icon_confused: I'll try the bigger cap value tomorrow when I can make a little more noise...
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on May 04, 2010, 01:31:14 PM
dude! thanks for the reply.. i als had a lot of fun with different capacitators.. i like you video and accent :)
how does the pot react to the different values?
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: bulldozed on May 04, 2010, 08:40:25 PM
Feeling a bit weird about this little noise-box.... I've had the breadboard on the floor in front of my amp, wildly pulling and plugging components.... I've found myself really liking the sound of removing everything from the original layout except the input cap  :icon_eek: Just straight into the cap, into the IC, and out of pin 5. There's noise coming through which I suspect may be linked to the lack of filtration; I'll try and implement something to knock that on the head...
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: blue_lu on May 06, 2010, 05:08:24 AM
Hi - thanks for the circuit. Really nice and simple. Even I could breadboard it.

Question: Did you get any selfoscillation at the end of the pot travel? Mine does self oscilate at the end. aaaand I can controll the pitch of selfoscilation with volume pot of the guitar...

anyone got something similar?!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on May 06, 2010, 03:49:22 PM
hi! i got pretty much the same effect.. self oscillating bit.. the guitar can work as an extra feature (its a potmeter  ;D)

glad you like it! cheers!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: SpencerPedals on May 07, 2010, 09:43:13 AM
Damn you for making something so simple that I absolutely have to try it...despite the 40 other projects I was hoping to finish up!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on May 08, 2010, 04:59:17 PM
Damn you for making something so simple that I absolutely have to try it...despite the 40 other projects I was hoping to finish up!

hehe.. i hear ya..  ;D




ps. ive added the layout to the gallery so its widely available for a longer period of time..
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Ned Flanger on May 08, 2010, 07:20:29 PM
This is a perfect project for me to practice my schematic/pcb program.  I will be back!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: stringsthings on May 14, 2010, 03:01:24 AM
Hi Guys!

Normally I'm just a spectator at this forum as I'm just beginning to understand electronics and stuff.
But I came up with something nice (in my own opinion ;)) when breadboarding.

I was looking for some nintendo sounds, like the FX Doctor 8bit and such and came up with something extremely easy and fun to built.

Here's a layout.. its kinda loud so maybe a volume knob would also be nice  ;D
I'll try to record some samples tomorrow (ill play some super mario for you all)

feel free to comment.. coz this is just based on trial and error.
(http://img11.imageshack.us/i/thingamabob.jpg/)
http://img11.imageshack.us/i/thingamabob.jpg/ (http://img11.imageshack.us/i/thingamabob.jpg/)


hey man, this project sounds very cool ! ..... i'll have to get me one of those IC's ....  thanks for posting your results !
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on May 14, 2010, 04:35:54 AM
those ics need little to act completely insane ;)
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: DC9V on May 21, 2010, 05:43:36 AM
This thing sounds sick. I need one! :icon_cool:
Has anybody made a PCB layout?
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Taylor on May 21, 2010, 03:23:19 PM
PCB layout? It's 4 parts.  :icon_wink:

If you can't get your hands on perf or vero, and don't want to point-to-point, you could just etch the vero pattern into some copper clad and drill where you need to. A PCB isn't going to be any smaller than that anyway.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: DC9V on May 21, 2010, 04:18:33 PM
As a beginner (and a pretty clumsy one, at that :icon_redface:) I feel much more confident working on a PCB, although in that particular case the chances for messing it up are rather small and I might just try it on veroboard. There was talk about a PCB layout earlier in the thread so I thought I'd go the easy way...

Plus, some people apparently like their internal wires bent at right angles (http://www.diystompboxes.com/smfforum/index.php?topic=83751.0)... well I enjoy the sight of a lascivious little PCB in my pedals :icon_mrgreen:
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Taylor on May 21, 2010, 04:38:53 PM
Ok, fair enough. What I was getting at is that you can treat the vero layout like a PCB layout. Etch the lines into your clad and only drill the holes you need.

Or, you could also use this as a chance to get your feet wet with doing layouts. Circuits don't get too much simpler than this, so it's as good a place to start as any. Download DIYLC (http://www.diystompboxes.com/smfforum/index.php?topic=44838.0) and give it a go!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: DC9V on May 21, 2010, 08:05:51 PM
Or, you could also use this as a chance to get your feet wet with doing layouts. Circuits don't get too much simpler than this, so it's as good a place to start as any. Download DIYLC (http://www.diystompboxes.com/smfforum/index.php?topic=44838.0) and give it a go!

Decided to pick up the challenge!
Now, this will certainly require correcting. It's my first layout and I don't know much about conventions in that area.

(http://i150.photobucket.com/albums/s115/tuco_06/ThingamabobPCB0.png)

I am aware that I've wasted quite a bit of board space. I was thinking about my clumsy podgy fingers when soldering :icon_smile:; I can try to correct that in a future version if needed.
I used component dimensions & pin spacing as found on my supplier's website.
I've also added a volume pot as suggested.

Could somebody with the Knowledge have a look at this? :icon_smile:
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: linny1982 on May 22, 2010, 03:33:49 AM
i have a smaller pcb layout with board mounted pots if you want it. pm me with your email address. its a pdf so its easy to print correct scale
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: papercutnoise on May 22, 2010, 03:20:39 PM
Any idea what sort of effect a voltage starve pot would have on this circuit???
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Ned Flanger on May 22, 2010, 11:48:25 PM
DC9V, I too am trying my hand at laying out a PCB.  What software are you using?  I have tried to use free stuff off the internet and they seem way too complicated for what I need.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Taylor on May 23, 2010, 12:30:41 AM
He's using DIYLC (http://www.diystompboxes.com/smfforum/index.php?topic=44838.0). It's good for simple layouts like this.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on May 24, 2010, 10:54:26 AM
Hi Guys! I've been away on the weekend, but like the way my topic has been evolving. nice job on the new volumepot designs btw.. i was going to look into that..

as for the voltage starve pot.. ive tried it actually.. got the example from beavisaudio
http://www.beavisaudio.com/Projects/DBS/

i got some nice results.. but you should just breadboard some values.. cant remember.
im thinking about building a thing-a-ma-bob deluxe.. so maybe, yeah!

i really appreciate your enthousiasm guys! thanks a lot!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Cymastar on June 24, 2010, 12:46:57 AM
How simple would it be to add a "Rambler" style octave up to this  :icon_biggrin:?

I'm stoked. This thing is getting built TONIGHT!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on June 25, 2010, 06:46:16 AM
How simple would it be to add a "Rambler" style octave up to this  :icon_biggrin:?

I'm stoked. This thing is getting built TONIGHT!

http://folkurban.com/Site/Rambler-713.html
breadboard it and tell us what you find ;)

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: bassk81976 on July 11, 2010, 03:53:36 PM
begiiner alert:

I've never read a veroboard layout before, are the red boxes broken holes, to disconnect the tracks?

i want to build this badly
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Taylor on July 11, 2010, 04:18:07 PM
Yes, correct. You can either cut the tracks with a utility knife, or what most people do is use a drill bit to drill that section of track out.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: bassk81976 on July 12, 2010, 02:58:20 AM
oky, another beginner question...

i breadboarded this up, checked it twice, checked it three times, then plugged it in to try.

Of course, it is 3 in the morning, so i couldn't turn it up loud.

But, it didn't really seem to...work well, i guess? It seemed to cut in and out, and i had to turn my practice amp up really loud to hear it at all.

I followed the layout pretty well, except i didn't have a 5.6nf cap for C1, so i used a .1 uf - the smallest i had, even though it was about double the asked for cap. That shouldn't make too much of a difference, should it? I'm using this for bass..

as i've understood it, a higher cap is better for bass, right? Or should i go hunting for a 5.6nf cap? Where do you guys get yours?

also, how is c2 supposed to be orientated? Or should it be a non-polarized cap? should both of them be non-polarized?
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on July 12, 2010, 06:05:10 AM
hi there bassk81976..

first of all theres some dead end on the pot.. depends on the use of humbuckers or singlecoil.. humbuckers have wider reach on this one..

have you checked wiring and your cut traces on shorting and such?

i think the 5.6 nf gave the best result on my experiment.. but i dont know about the 0.1 uf havent tried it..

before you box it.. also put in a volumepot.. theres some design of a volumepot in this post.. its way too loud to put it in your breadboard without..

are you using a full battery (just to make sure)

hang in there! and keep us posted

gr, Mic
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on July 12, 2010, 06:07:20 AM
as for c2 = the negative goes to ground (shortest metal thingie)

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: luko-man on July 12, 2010, 11:55:19 AM
 love this cuircuit, off to stupidly mod it with germanium diodes and other gain stages and such :)

cheers for the design it is  :icon_cool:
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Taylor on July 12, 2010, 02:41:09 PM
I followed the layout pretty well, except i didn't have a 5.6nf cap for C1, so i used a .1 uf - the smallest i had, even though it was about double the asked for cap. That shouldn't make too much of a difference, should it? I'm using this for bass..

That value shouldn't make the circuit not work, but I did want to point out that it's 20 times larger, not just twice as large. .1uf= 100nf. Here's a good chart to help you get the hang of how the different values relate to each other:

http://www.justradios.com/uFnFpF.html
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on July 12, 2010, 04:51:05 PM
I followed the layout pretty well, except i didn't have a 5.6nf cap for C1, so i used a .1 uf - the smallest i had, even though it was about double the asked for cap. That shouldn't make too much of a difference, should it? I'm using this for bass..

That value shouldn't make the circuit not work, but I did want to point out that it's 20 times larger, not just twice as large. .1uf= 100nf. Here's a good chart to help you get the hang of how the different values relate to each other:

http://www.justradios.com/uFnFpF.html

nice one! i always use that same chart ;)
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: bassk81976 on July 12, 2010, 05:56:35 PM
ok, so i;'m getting sound now, but nothing as synthy-game-boy-laden-square wave as the example, and only when EVERYTHING s turned up to 10 - instrument master and tone pot full on, amp's gain, master, treble, bass, mid all at 10, is loud enough to be heard, when gain at 0 and master at 2 is enough to be heard.

is it because of the .1uf cap? and, that should have the negative pointed towards the input jack, right? with positive to the rest of the circuitry. also, here's A LOT of scratch noise when i turn the pot, but that could be because of my pot...i need to stop buying radioshack and order from the diystore/small bear
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on July 12, 2010, 06:01:45 PM
sorry to hear that! the thing is really loud.. so theres def something wrong with your built.. try to find the right cap.. make sure its a greenie as well.. something like this
(http://www.newtone-online.nl/catalog/images/cgrx35.jpg)

have you used the right lugs of the pot.. with the shaft up.. its 1,2,3 from left to right..

you could also try to remove the pot with the resistor.. it should give fuzz.. without gating..

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: bassk81976 on July 12, 2010, 07:43:44 PM
it is because of the cap, then, would it be worth it to buy something like this: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130409514605

or should i buy something less numerous?
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on July 13, 2010, 05:03:45 AM
it is because of the cap, then, would it be worth it to buy something like this: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130409514605

or should i buy something less numerous?

the amount is up to you, really :) if you're planning to built a lot more effects in the future its always a good investment.. but make sure the values are usable (check out some sxchematics of your interest)
i personally would go to my local shop and spend some coins for just one or two and buy a 100k potmeter just as well to make a nice volumepot for boxing it up.

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: theundeadelvis on July 13, 2010, 10:36:58 PM
Perfed this little guy after work today, and it's pretty damn cool! Going to see what it sounds like through the Minimoog. Trying to think of ways to add more knobs for adjustable craziness.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on July 14, 2010, 05:58:57 AM
glad you enjoyed it!  :D

i'm planning on building a thing-a-ma-bob deluxe after i finish the two pedals on the bench.

switchable caps / maybe a sag / volume

lots more to think about ;)
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: SuperMaximo93 on July 28, 2010, 05:59:33 PM
Hi everyone, new to the forum  ;D

Just started (trying) to put together some pedals today (simple fuzzes), and I'm glad I found this thread! This thing sounds great (and I haven't even tried it with my decent amp yet. I'm a bass player btw)! I was looking for a pedal sorta like this but they were expensive... then I find this and make it for cheap  :D It's on a breadboard though so I'll still need to get some more bits and pieces...

I got the volume part working as well, now I think I want to make it so I can blend the effect with the clean signal... Hope it won't be too difficult... Time to do some research  :)
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on July 28, 2010, 06:04:17 PM
hey dude.. thanks for stopping by.. i've just posted a new design.. synthlikefuzz
you can find it here:
http://www.diystompboxes.com/smfforum/index.php?topic=86068.0

i also found a simple blend layout for you by another forummember .. you should def check it out.
http://www.aronnelson.com/gallery/main.php/v/Toneys-Album/Buff_n_Blend.png.html

i havent tried it but its nice and simple

take care!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: SuperMaximo93 on July 28, 2010, 06:20:54 PM
Cool, thanks a lot!  :) Will pick up the parts I need tomorrow and report back  ;D
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: tippie on February 02, 2012, 10:30:38 PM
Or, you could also use this as a chance to get your feet wet with doing layouts. Circuits don't get too much simpler than this, so it's as good a place to start as any. Download DIYLC (http://www.diystompboxes.com/smfforum/index.php?topic=44838.0) and give it a go!

Decided to pick up the challenge!
Now, this will certainly require correcting. It's my first layout and I don't know much about conventions in that area.

(http://i150.photobucket.com/albums/s115/tuco_06/ThingamabobPCB0.png)

I am aware that I've wasted quite a bit of board space. I was thinking about my clumsy podgy fingers when soldering :icon_smile:; I can try to correct that in a future version if needed.
I used component dimensions & pin spacing as found on my supplier's website.
I've also added a volume pot as suggested.

Could somebody with the Knowledge have a look at this? :icon_smile:
Sorry to bump such an old thread but I built this today from this layout (but on perfboard) and it's working great! My first successful build! I'm loving the weird sounds and there's a nice fuzz with the pot all the way down. Thanks for such a cool, simple pedal!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: electricteeth on February 03, 2012, 10:49:14 AM
I built this long ago when you first posted it. I use it all the time. Its pretty fun for bass. I like the cleanup mod, I'm going to have to add that.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Earthscum on February 03, 2012, 11:12:04 AM
I built this long ago when you first posted it. I use it all the time. Its pretty fun for bass. I like the cleanup mod, I'm going to have to add that.

I'm gonna have to give this a try. I've breadboarded slightly similar stuff, but never did anything complete. This might end up being the "nasty" in my distortion group, lol.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: petey twofinger on February 03, 2012, 03:16:24 PM
what is the cleanup mod ?
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: electricteeth on February 04, 2012, 08:13:34 AM
I just meant about changing the cap to ground from 8 to a smaller value. Cleanup.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: electricteeth on February 05, 2012, 05:25:27 AM
oops, cap to ground from 1. srry.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on February 07, 2012, 02:20:28 PM
Or, you could also use this as a chance to get your feet wet with doing layouts. Circuits don't get too much simpler than this, so it's as good a place to start as any. Download DIYLC (http://www.diystompboxes.com/smfforum/index.php?topic=44838.0) and give it a go!

Decided to pick up the challenge!
Now, this will certainly require correcting. It's my first layout and I don't know much about conventions in that area.

(http://i150.photobucket.com/albums/s115/tuco_06/ThingamabobPCB0.png)

I am aware that I've wasted quite a bit of board space. I was thinking about my clumsy podgy fingers when soldering :icon_smile:; I can try to correct that in a future version if needed.
I used component dimensions & pin spacing as found on my supplier's website.
I've also added a volume pot as suggested.

Could somebody with the Knowledge have a look at this? :icon_smile:
Sorry to bump such an old thread but I built this today from this layout (but on perfboard) and it's working great! My first successful build! I'm loving the weird sounds and there's a nice fuzz with the pot all the way down. Thanks for such a cool, simple pedal!

wow! cool to see someone still enjoying this one.. I think its still close to being one of the easiest (low part count) noise boxes around..  glad you like it!  :icon_wink:
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 25, 2012, 01:13:07 AM
you mean when its almost closed? that depends on the source you use... the signal is heavily gated when its almost closed so not every source will give useful or even sound.
you could play with the resistor to the ground.. add different values, but personally i only had 1k 3.2k and 4.7k to try it with ;)


Has anyone decided the best resistor value for a guitar only (source) version of this to avoid the dead spot? I should have done the bread board thing but I got overly excited and drew up a layout and etched a board for this cus I knew this would be something I'd love....turns out I wasn't wrong about that!!!! AMAZING!!!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on September 25, 2012, 07:00:47 AM
you mean when its almost closed? that depends on the source you use... the signal is heavily gated when its almost closed so not every source will give useful or even sound.
you could play with the resistor to the ground.. add different values, but personally i only had 1k 3.2k and 4.7k to try it with ;)


Has anyone decided the best resistor value for a guitar only (source) version of this to avoid the dead spot? I should have done the bread board thing but I got overly excited and drew up a layout and etched a board for this cus I knew this would be something I'd love....turns out I wasn't wrong about that!!!! AMAZING!!!

Hi dude! thanks for your interest.. it really depends on your pickups (single vs humbucker) i think I used 4k for my single coils
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: runmikeyrun on September 25, 2012, 08:57:10 AM
as a bass player in a thrash/noise band with little time to build I'm definitely going to have to try this!  Thanks man!
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 25, 2012, 06:19:31 PM
Humbuckers here....so really maybe a switch to go between to diff resistors depending on your pickups?
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on September 26, 2012, 07:58:48 AM
Humbuckers here....so really maybe a switch to go between to diff resistors depending on your pickups?

don't expect too much of a difference.. 4 k should be plenty for humbuckers..
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 28, 2012, 12:01:11 AM
I was just hoping to get rid of that dead spot. I finally got to test it out at "band volume" today...I do most of my soldering at night so I always have to test my builds pretty quietly...anyways when I play with the fuzz turned up theres a hissing/static going on...if I don't play its silent but when I strum a note as the note decays the hiss/static eventually is louder then the note. Is that normal? I'm hoping not cus its been a few days and I still love this thing!
Title: Re: Sv: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Perrow on September 28, 2012, 04:13:07 AM
I was just hoping to get rid of that dead spot. I finally got to test it out at "band volume" today...I do most of my soldering at night so I always have to test my builds pretty quietly...anyways when I play with the fuzz turned up theres a hissing/static going on...if I don't play its silent but when I strum a note as the note decays the hiss/static eventually is louder then the note. Is that normal? I'm hoping not cus its been a few days and I still love this thing!

Try a cap "on" the power, maybe 100uF, that has helped many 386 builds.
Title: Re: Sv: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 28, 2012, 10:03:04 PM
I was just hoping to get rid of that dead spot. I finally got to test it out at "band volume" today...I do most of my soldering at night so I always have to test my builds pretty quietly...anyways when I play with the fuzz turned up theres a hissing/static going on...if I don't play its silent but when I strum a note as the note decays the hiss/static eventually is louder then the note. Is that normal? I'm hoping not cus its been a few days and I still love this thing!

Try a cap "on" the power, maybe 100uF, that has helped many 386 builds.
   you mean between the battery and the IC?  What other 386 projects are there? or simpler question...which would you recommend? Thanks!
Title: Re: Sv: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Perrow on September 29, 2012, 04:07:29 AM
From pin 6 to ground, the 386 seem to be dependent on stable power. Rob, deadastronaut, designed a circuit called Big B*stard, might be worth a look. I'm on my phone right now, but there should be links to it from the wiki in my sig.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 29, 2012, 04:01:56 PM
Awesome. I'll try that this weekend. (http://circuits.datasheetdir.com/271/SSL-LM386-pinout.jpg) just so its here for everyone. I'm a real beginner with some things but with others I have a pretty good handle. That can happen pretty easily when your self taught.  :P
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 30, 2012, 02:47:24 AM
No luck with the 100 uf cap. There is no noticeable change at all.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on September 30, 2012, 03:03:45 AM
I was just hoping to get rid of that dead spot. I finally got to test it out at "band volume" today...I do most of my soldering at night so I always have to test my builds pretty quietly...anyways when I play with the fuzz turned up theres a hissing/static going on...if I don't play its silent but when I strum a note as the note decays the hiss/static eventually is louder then the note. Is that normal? I'm hoping not cus its been a few days and I still love this thing!

there's def something wrong with your build.. it should not be hissy or static in the decay.. this pedal is extremely gated and the sound just weirdly fades out with a couple of random octaves most of the time.  there is ' however' a spot on the pot that can give some noise.. but thats only a fraction of it..
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 30, 2012, 03:19:04 AM
Cool! I'd rather have something screwed up then have no solution. I guess I'll pop in the spare chip I bought before doing a total rebuild.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: FUZZZZzzzz on September 30, 2012, 03:44:22 AM
it should sound something like this:

Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 30, 2012, 03:59:49 AM
yup thats pretty much how it sounds plus the hum/static/fuzz in the background. Why doesn't ANYONE ever play chords when they demo something on youtube? Like maybe five percent of demos play a chord progression.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: timd on September 30, 2012, 09:32:39 PM
I have noticed that also. Too many demos are a lenghty blues solo and thats it - No chord progressions. Many youtube vids are trying to sell a pedal, but not all prospective buyers are going to want to see "pro" style playing.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on September 30, 2012, 10:49:51 PM
Ok so I tinkered around and replaced parts (caps, pot, tested the value of the resistor)...no improvement. The only thing I can think if its not the pedal then its the practice amp I use to test my projects. I'll have to wait until I go to my drummer friends house for my main amp or dig another practice amp out of storage.

Adding to the chordless youtube samples. I wanted to build a vox superfuzz cus I know its used on a lot of Mudhoney tunes...but with more then one guitar happening in that band I wanted a distinct sample of just the superfuzz.....I had to go through an unbearable amount of solo only samples before I heard someone string a few chords together. I guess thats why there are so many bad songs out there....nobody works on they're rythm playing once they get the hang of it...they just spend all they're time noodling solos. Blah maybe I should stop complaining and start making videos.
Title: Re: THE THING-A-MA-BOB MP3 SAMPLE ADDED!!! (easy as pie homemade nintendofuzz)
Post by: Canucker on December 12, 2012, 12:23:00 AM
how easy would it be to add a sensitivity control to this? REVIVED!