here's a video demo of my build...i love this pedal!!!
Quote from: pinkjimiphoton on May 07, 2011, 09:10:38 PM
here's a video demo of my build...i love this pedal!!!
excellent demo...you covered a whole helluva lot! Is there a schematic (not layout) for this one with the LFO?
Yeah, great demo. Someone needs to do a fabbed PCB for this circuit, including the LFO mods. I really need to make one.........
thanks guys, i really love this pedal. i just used the schematic on tim's circuit snippets page, and added the lfo as suggested i think. pretty sure i put up the layout i used here on the forum somewhere, too...i'll try to find it, but it's a pretty easy circuit and works great. i think i subbed a pot with a different value to give more sweep, but other than that it's what tim drew up.
(http://www.jiggawoo.eclipse.co.uk/guitarhq/Circuitsnippets/uglyface.gif)
this is what i built tho.
(http://www.frigidworld.com/rich/uglyface_lfo_blanik.jpg)
this is the layout i used i think
http://www.diystompboxes.com/smfforum/index.php?topic=70747.0
(http://www.jiggawoo.eclipse.co.uk/guitarhq/Circuitsnippets/uglyface.gif)
Thx for posting! I definitely will build this.
But D1/C1 in your layout look a bit strange
might look weird, but it works good!! :icon_mrgreen:
have fun, i hope you diggit as much as i do!
;)
great demo man....
do you get any ticking at all from the 555?......
i may be wrong, but if you were to open up pin1 pin8 (edit on the 386), you could whack a gain in there too....maybe!!!! hmmmm..
anyway sounds cool... :icon_wink:
hi rob, thanks man.
no, no ticking...i think it's cuz the clock isn't really connected to the audio. or maybe it's so freekin' distorted ya can't hear it!! ;)
that would be a cool thing to try, i haven't had much luck with 555's as fuzzes tho.
you gotta build one of these things!! there are sooooo many places where it can be used...surprising, cuz most demos of it kinda just focus
on the wack noise ya can get out of it.
but if ya mess with it, it can be really musical and beautiful, or completely horrible and deranged.
thanks for checking out my lame-o demo!
;)
Quote from: pinkjimiphoton on May 15, 2011, 09:47:18 PM
hi rob, thanks man.
no, no ticking...i think it's cuz the clock isn't really connected to the audio. or maybe it's so freekin' distorted ya can't hear it!! ;)
that would be a cool thing to try, i haven't had much luck with 555's as fuzzes tho.
you gotta build one of these things!! there are sooooo many places where it can be used...surprising, cuz most demos of it kinda just focus
on the wack noise ya can get out of it.
but if ya mess with it, it can be really musical and beautiful, or completely horrible and deranged.
thanks for checking out my lame-o demo!
;)
I completely concur with jimi on this sucker. One of the most interesting and versatile pedals in my arsenal. I've built a bunch over the last year, but this version of the Uglyface, and my version 2 of the Parallel Universe are still among my favs. Really wide tonal pallette. I almost wish that I could insert a loop into it (a la PU2 or Skyripper), so I could run a square chop trem signal through it as well. Now THAT would be cool!
that would be cool!!! :icon_mrgreen:
Hey,
Just found this video clip after months in the wilderness - it really does this pedal justice and happy that the LFO and mods are getting built up. I have more on this pedal - it just keeps getting better. Need to re-visit what I've done and write it up - now includes variable shape control (not switched ramp up/normal/ramp down) and a variable switched filter.
BUT......THAT WOULD MAKE IT EVEN BETTER!!
DO IT UP MICK!! LOL :icon_mrgreen: :icon_mrgreen:
Cool stuff, makes me want to build one. It has been on my list for eight years or so ;-).
Good demo btw!
wow!
That sounds amazing.
I have a populated board for ne of these somewhere - just need to box it up.
I may be busy in sunday... :icon_twisted:
Thanks for such an in-depth video...
:icon_lol: :icon_biggrin:
to pinkjimiphoton
cool :). very detail video.
to Mick Bailey
love to see the new work on the ugly face from u.
"variable shape control (not switched ramp up/normal/ramp down) and a variable switched filter."
;D
That's probably the most musical ugly face demo I've ever heard. Makes it tempting
dude, if ya take a couple minutes to work with it, you'll see it's a pretty savagely beautiful and useful toy to have in the arsenal.
my lame humble viddie barely lays creedence to a pittance of what this thing is capable of.
if i had to, i could (if i had the time to keep resetting the knobs) i could probably use it on every song i do usefully and musically in some ways.
this is a drop in the bucket...
every time i plug that puppy in, i get lost for an hour or two. you can make sounds wack and savage or subtle and slutty if ya want to. don't expect clean, tho, which is about the
only thing you WON'T get. ;)
highly recommend the lfo version...really adds a lot to what the stock unit does.
does the "phaser toy" sounds of your youth even.
my reccomendation? build two. put one in a crybaby shell. ;)
Great demo! Now I really have to move this one up on my build list.
How do you think this would sound with bass? My girlfriend is missing the sound of the distortion circuit that was in her GK Backline 115, and she's been unhappy with all the distortion pedals she's tried. (not gigantic-enough-sounding, she says) Would this need some re-voicing, or does it handle the low notes pretty well?
I've promised to eventually build her a Gristlizer some day, but this looks slightly easier and just as much fun to use.
i guess just double up the caps in the audio path for bass, like in every other "bass" version of a pedal i've seen.
i HAVE used it on bass tho, and it's pretty f'n sick!
Here's the latest schematic showing the variable shape control and switchable filter sweep;
http://www.avwz35.dsl.pipex.com/uglyface lfo & mods v2.bmp (http://www.avwz35.dsl.pipex.com/uglyface%20lfo%20&%20mods%20v2.bmp)
Ver nice work Mick! Thank you a lot!
But, please, can you explain me how to wire the mod for the Frequency pot?
In the original schematic it's a 100k pot wired in this way:
- 1 leg to the 470 ohms resistor
- 2 leg to the pin 3 of the 555
- 3 leg before the 0.1uF output cap
Can you said me in the same manner how to wire the mod?
Thank you a lot!
Yes,
1. Replace the original 100k pot in the schematic with a 220k pot. The circuit is wired the same but now has a 220k pot.
2. Now, solder a 22k resistor between 2 leg and 3 leg.
Hope this makes sense.
Mick
Thank you very much Mick!
I did it as you said from the beginning, but the Frequency doesn't act very well. Mainly, it has only 2 or 3 points where are siginificant changes in the sound.
I used a PCB on which I made a lot of mods, so I think that I must to rebuild it from scratch on perf or vero.
Best regards,
Radu
Quote from: Mick Bailey on November 05, 2011, 05:36:54 PM
Yes,
1. Replace the original 100k pot in the schematic with a 220k pot. The circuit is wired the same but now has a 220k pot.
2. Now, solder a 22k resistor between 2 leg and 3 leg.
Hope this makes sense.
Mick
So it's like this?
(http://home.comcast.net/~gprause/4.gif)
Based on the mod file I would have sworn it was like this:
(http://home.comcast.net/~gprause/3.gif)
Your first drawing is how I intended it. Will update my mods page to clarify that the wiper still needs to connect to the LDR. You're right - it is misleading.
Quote from: Mick Bailey on November 06, 2011, 05:23:36 AM
Your first drawing is how I intended it. Will update my mods page to clarify that the wiper still needs to connect to the LDR. You're right - it is misleading.
Mick, thanks for the confirmation!
Since you swapped out the shape switch for a pot (cool idea btw), would it be possible to swap out the sweep switch for a pot as well. Just a weird-ass idea.
Weird-ass idea number 2; I was looking at this diagram, showing a triangle/square shape switch.
(http://www.eskimo.plus.com/fxstuff/easy_lfo.png)
Overlays with the Uglyface LFO I find. I wonder what a square waved LFO would sound like on the Ug Ug Ug Ug Ly Ly Ly Ly Fa Fa Fa Fa Ce Ce Ce Ce? :icon_lol: Maybe another pot to fade from triangle to square? Like here;
(http://www.experimentalistsanonymous.com/diy/Schematics/Oscillators%20LFOs%20and%20Signal%20Generators/Simple%20Dual%20LFO.gif)
I'm sorry, but my UF is packed away in a box, and it'll be a real PITA to dig it out and try. I'm just thinking out loud. :icon_mrgreen:
yes, I know it's more than 120 days, leave me alone .....
ohh, did I type that? ahem. well now, I see a lot's a talkin about this lfo mod, but no where here nor googoo can I find a circuit diagram of same connected to the ugly face. and yes, I also know what the dual opamp tri-sq osc looks like, I just wanna see the circuit. does anyone have said diagram?
please don't post a vero layout.
Quote from: duck_arse on September 20, 2014, 12:40:04 PM
yes, I know it's more than 120 days, leave me alone .....
ohh, did I type that? ahem. well now, I see a lot's a talkin about this lfo mod, but no where here nor googoo can I find a circuit diagram of same connected to the ugly face. and yes, I also know what the dual opamp tri-sq osc looks like, I just wanna see the circuit. does anyone have said diagram?
please don't post a vero layout.
+1, can we have it, please?? Didn't catch Jimi's vid when it first came out...that's a sick pedal, man!!! On my list now....
ohhh, gibson, hold fire a little on building. I gotta redesign going at the mo, with dividers on everything - sounds like throat singing, probably up/down sweep as well. there might be room for this ledgendary lfo addition, but when I tried one on early breadboard, it didn't sound much more than a tremolo.
I am in no position to view videos I'm afraid; I didn't realise this was a video-themed thread until just after I pressed "Post".
I'd like to see what you have, DA! Whatever LFO Jimi hacked into this thing sounds really nice....he seems to have been able to get one that can sweep pretty fast and phasey, but also one that can be dialed back to go so slow as to sound a little bit like a VCF.
I meant to try this circuit years ago - I have the right 555 somewhere in the pile that I'd ordered for it - but then got onto other pressing things. Re-finding the video just sparked that interest again, hee hee. I'll probably just breadboard for now...
I thought it was the tremulus lune as per the vero doing the rounds
Oh, the LFO's from the Trem Lune? I'd like to see the whole thing in schematic form, as Jimi has it in the vid....
well, I can't show what I got, cause I don't know what it is yet. and the paper I'm drawing on is starting to get thin from erasering, it all changed again today. I've added divider-led drive to the madness, for some hilarious bird whistles. I can see at least 3 places to try lfo, but if there is a set working place it'll save me some messing about.
This one really NEEDS to be documented. I've seen the vero (of course), but that's just...a vero. We need a schematic with updates to show the LFO 'insertion' point, and maybe to document some of the successful mods people have been talking about! Just my 2 cents.
DA, photocopy your paper, then you can write over the NEW copy! Ha ha...
Check out grindcustoms machete. I think that might be what you are looking forwww.grindcustomsfx.com/forum/viewtopic.php?f=2&t=611 (http://www.grindcustomsfx.com/forum/viewtopic.php?f=2&t=611)
Quote from: Luke51411 on September 22, 2014, 06:12:46 PM
Check out grindcustoms machete. I think that might be what you are looking forwww.grindcustomsfx.com/forum/viewtopic.php?f=2&t=611 (http://www.grindcustomsfx.com/forum/viewtopic.php?f=2&t=611)
Looks like that's the one, Luke! Thanks a lot; I had to satisfy my curiosity, and this thread seemed to cry out for a schematic to go with the vero :) Nice add, buddy.
I'll be building it over the coming week when I can get some time.
to a point, excellent! a circuit! (needs a series resistor on the led; it's the rule.)
gibson - I started a new piece of paper today. just imagine a blank rectangle, white, some smudge in the corner. that's how far I've gotten. I have switched breadboards tho, and starting from the front-end. again.
Ha, I love a 'new' breadboard! That's why I'm getting interested in this - can't have an open breadboard around too long, it's bad luck!
the bb neaded some "refurbishment" before use. it'll last until the new one arrives. some progress has been made (on the sig gen), by simply adding more parts. still, there'll be a spare opamp for the osc ....
How about a CV sequencer instead of the LFO.. :icon_cool:
a sequencer? I have a (2) 4 bit counters on my board, driving the madness. stepped/square waves into CV sounds more fun than an lfo on the led.
[edit:] we might be thinking of different things here. too late now.
I'm thinking more of a sample and hold type of sound versus the typical lfo sweeping. Might experiment with that myself someday, too busy with other stuff right now
Quote from: ~arph on September 24, 2014, 10:36:55 AM
How about a CV sequencer instead of the LFO.. :icon_cool:
I have Uglyface.
I have EHX 8 Step.
Where do I plug in?
:icon_mrgreen:
(Lug 2 of the frequency pot? :icon_rolleyes:)
I can't wait to see what you guys come up with.... ;)
Quote from: digi2t on September 24, 2014, 04:49:22 PM
Quote from: ~arph on September 24, 2014, 10:36:55 AM
How about a CV sequencer instead of the LFO.. :icon_cool:
I have Uglyface.
I have EHX 8 Step.
Where do I plug in?
:icon_mrgreen:
(Lug 2 of the frequency pot? :icon_rolleyes:)
Driving the LED (instead of having the guitar signal drive the LED)?
Yup, drive the LED.
I guess that would be between the Sensitivity pot, and the 2.2uF cap. The 1K pot acting as the current limiter for the LED, and how much the CV will play on the LED.
I think my Schumann Two Face Fuzz build is going to take a temporary back-seat tonight. ;D
Where the LFO connects here: www.grindcustomsfx.com/forum/viewtopic.php?f=2&t=611
Also, yes, between the cap and the pot.
Quote from: GibsonGM on September 24, 2014, 07:31:00 PM
I can't wait to see what you guys come up with.... ;)
you say that now. how many rotary switches do you have?
I'm gots mine working (bb and guitar), no lfo though. with divided square fed to the 7555 CV input, sometimes via resistor, sometimes via cap, sometimes both parallel. everyone's a winner. sheer, sliding madness, probably totally useless. it'll be a hellava circuit, possibly tomorrow.
Nice! Can you make a clip, DA? I haven't started mine as i'm now engaged building a timer for a dehumidification system using an Arduino...off to code...
me DA? a clip? I can't even work the fecking built-in soundcard on this pc with linux. I mute one channel, it auto-mutes all channels, and there is one channel that needs un-mute but set to 0. baffling.
lfo now included. circuit tomorrow, fer sure.
and you blokes playing at the sensitivity pot - I've added an emitter follower between the pot wiper and the 7555 R input, with a 100nF at the base for sigs in. I found the low-end of the sens pot was playing funny buggers with weedy cmos digital signals.
now I've done this.
http://www.diystompboxes.com/smfforum/index.php?topic=108756.msg992271#msg992271
Did anyone ever come up with the just LFO added mod? I'd love to build one but don't have/never used strip board, prefer the schematic for sure :icon_twisted:
I would like to see a schematic for this modded Ugly Face, but the link is broken. :(
is it the mick bailey circuit you are seeking?
i never had the schematic for this, other than escobedo's, but i have the vero layout if it'll help ya. worked great, it's what's in the video.
btw, still on the original battery, how many years later?????
Quote from: duck_arse on March 21, 2016, 10:21:00 AM
is it the mick bailey circuit you are seeking?
This one: http://www.diystompboxes.com/smfforum/index.php?topic=90641.0
I did the trace like this, but I would like to see an original to compare (I'm pretty new with this).
http://www.cad.rs/d/UglyFaceLFO.pdf (http://www.cad.rs/d/UglyFaceLFO.pdf)
allow me the overnight and I'll have it looked at.
[edit :] but if something else comes up, it'll be two days ....... sorry.
it is done. as far as I can see, your diagram matches the vero layout. if the vero ain't right, then .....
however - it has been mentioned before, and now again - that vero shows D1 and C1 connected wrong/ineffectually/weirdly. your circuit appears sane in that area.
your circuit shows a 2 position switch for the rampup/no/down switch. it should be drawn with an empty circle in the middle position to indicate the off state.
and, from when I could stand the noise this makes - you might add a supply bypass cap for IC3. the vactrol led really should have a low value series resistor of its own for protection. and the output level is so big and sounds so awful that a tone control is recommended. you can use a series pot and cap to ground, lose half your signal and still be volts in.
good luck.
all i can say is that whatever veroboard diagram i posted appears to have been good, i still have my ugly face and it sounds great. i did add a small cap to ground to take some of the high end a little, but other than that as shown it worked great.
Quote from: duck_arse on March 25, 2016, 10:03:51 AM
the vactrol led really should have a low value series resistor of its own for protection.
Is 100 Ohm sufficient?
100R is certainly better than nothing. yes, entirely adequate.
Is there any suggested value? I am afraid that if I put too big resistor here, it will affect LDR sensitivity too much.
are you doing roll-your-own vactrol or bought one? if rolling with a superbrite, you would probably still get enough swoop to make you sick with a 100R. you can try it, if you don't feel sick enuff, link over the R.