Uglyface with LFO footswitch wiring

[Zombie_Crush]

Hi all

Am planning to build an Uglyface with LFO using the following diagram :




would like to add an additional - pedal on/off - via a 3PDT footswitch.

could anyone tell me how i would go about wiring it for this build version.


Cheers 

[jasperoosthoek]

Welcome to the forum!

If you don't know how to wire a 3PDT switch the Ugly Face might be a bit ambitious for you. A simple buffer or silicon Fuzz Face is usually recommended for people inexperienced in electronics. Get something easy to work and let that fuel your enthusiasm.  Then attempt something a bit harder. You will make the same beginner mistakes on an easy build. But debugging will be a lot easier. And who knows, maybe your first project works like a charm!

Some links to get you going:
http://www.diystompboxes.com/smfforum/index.php?board=6.0
http://www.premierguitar.com/Magazine/Issue/2007/Nov/The_DIY_True_Bypass_Lesson.aspx

[digi2t]

Here you go;



The switch shown is for bypass. It grounds the input of the effect, effectively killing the ocsillation, so it doesn't bleed through when you're bypassed. For the LFO switching, use the diagram you posted. GGG also has a technical paper on their site addressing bypass wiring.

Cheers,
Dino

[Zombie_Crush]

Hi jasperoosthoek

have actually made a fair amount of pedals in my time lol

am simply finding this build at bit vague regards wiring off the board

if you have any additional info regards adding a 3PDT would be much appreciated 

[Zombie_Crush]

Hey cheers digi2t


shall try this!

[jasperoosthoek]

have actually made a fair amount of pedals in my time lol

am simply finding this build at bit vague regards wiring off the board

if you have any additional info regards adding a 3PDT would be much appreciated 

I take it that digi2t posted before you did and you don't need more info. As this was your first post and you asked something basic I assumed you were not experienced  . 3PDT true bypass switching is quite straight forward. Connect the input, output of the box and effect and the LED to the switch. It should be the same for almost any effect.

[digi2t]

Connect the input, output of the box and effect and the LED to the switch. It should be the same for almost any effect.

I beg to differ here Jasper. You could wire an effect to simply bypass the effect, but with the Uglyface (as with many other oscillating effects), you need to ground the input when bypassing. If you don't, the LFO signal will bleed through into the clean signal. Every configuation has it's application.

What's the matter Jasper? You seem awfully cranky today. Try to remember, there are no stupid questions, only stupid answers. Trust me, I've had more than my share of noob questions, but what sets this forum apart is it's excellent membership, always willing to freely give their knowledge, experiences, and guidance.

Lets keep this spirit going.

Noobfully,
Dino

[jasperoosthoek]

I beg to differ here Jasper. You could wire an effect to simply bypass the effect, but with the Uglyface (as with many other oscillating effects), you need to ground the input when bypassing. If you don't, the LFO signal will bleed through into the clean signal. Every configuation has it's application.

I did not know that you had to ground the input on this particular effect! Thanks for pointing that out it makes great sense. I haven't built it yet although I'm quite familiar to it.

What's the matter Jasper? You seem awfully cranky today. Try to remember, there are no stupid questions, only stupid answers. Trust me, I've had more than my share of noob questions, but what sets this forum apart is it's excellent membership, always willing to freely give their knowledge, experiences, and guidance.

Lets keep this spirit going.

Noobfully,
Dino

I saw that the thread was from yesterday, I was afraid a first time poster wouldn't get any response! That's what happened to me when I first posted on another forum. I thought the guys were not interested, turned out you have to know how it works and how to get some replies. My intention was to help him out a bit before he needed to bump his thread or he would have given up.

My apologies if I came across as cranky, maybe it's because I didn't sleep long enough last night... I thought it was a fairly straight forward problem that just needed a text book solution. Apparently it was not and I should have left this thread alone  .

[Zombie_Crush]

Cheers Again! Dino

[Zombie_Crush]

Am still stumped on this build regards incorporating a 3PDT foot-switch to the top diagram schematic.

Also where exactly do the yellow wires lead to?

do I connect the ground wires from VOL and SENS to the Stereo INPUT 1/4 as a Star-Ground, or the ground connection on the - 9V INPUT Socket

If anyone has added a 3PDT Foot-Switch to this version 1.11 Uglyface,  please could you show me how I would wire the 3PDT Foot-Switch and wiring to 1/4 Jacks 9V input etc

huge thanks in advance

[jasperoosthoek]

Also where exactly do the yellow wires lead to?

When I tried to find the schematic I stumbled on this: http://www.home-wrecker.com/uglyface.html
So the left yellow wire will be the signal going into the effect and the right yellow wire (coming from the volume pot) is the signal exiting. This has to be connected to the 3PDT switch,

do I connect the ground wires from VOL and SENS to the Stereo INPUT 1/4 as a Star-Ground, or the ground connection on the - 9V INPUT Socket

IMO the best way would be to connect them to the ground on the perfboard: That will be the leftmost wire at the edge of the perf also connected to the (-) lug of the 9V battery. That will by far be the cleanest way. Then connect that to the ground lug on the 1/4" input socket.

If anyone has added a 3PDT Foot-Switch to this version 1.11 Uglyface,  please could you show me how I would wire the 3PDT Foot-Switch and wiring to 1/4 Jacks 9V input etc

Use the schematic of digi2t. The connection marked FX IN goes to the left yellow wire on your schematic. The connection from the volume pot on his schematic works the same as yours. In tip and Out tip are the 1/4" sockets. Connect the (*) marked connection to the ground of your perf board.

I hope that is clear  .

[Zombie_Crush]

Hey Jasper! 

thanks for your support, really helpful info     


shall let you know how it goes!   

[jefe]

I beg to differ here Jasper. You could wire an effect to simply bypass the effect, but with the Uglyface (as with many other oscillating effects), you need to ground the input when bypassing. If you don't, the LFO signal will bleed through into the clean signal. Every configuation has it's application.

I wire all my bypass 3PDT switches that way (ground the input), not just with oscillating effects.

[Zombie_Crush]

Hey again Jasper

The Uglyface section is working great .. quiet mental ...  sadly I placed my IC3 - LM1458N around the wrong way when installing, would that blow the chip? and am getting nothing from the LFO or SPDT... however I do get control of sensitivity on/off via the DPDT - am also using a reverse C100k pot for LFO Rate. I checked the pot with the multimeter and its working 100%  .... board and circuit wiring also seem to be fine .. so can only think it could be the orientation of the chip when i turned it on

Is there a way i could test the chip?

[frequencycentral]

The LM1458N is dead. Bury it. Say a few words. Get another. 

[Zombie_Crush]

lol

In the time between then and reading your message now Rick I switched the dead 1458 out for a 4558 .... working! and sounding crazy-good!

[jasperoosthoek]

The LM1458N is dead. Bury it. Say a few words. Get another. 

http://hometech.apartmenttherapy.com/images/uploads/remotefromgrave.jpg

In the time between then and reading your message now Rick I switched the dead 1458 out for a 4558 .... working! and sounding crazy-good!

Nice! Any plans for a new build? Can't easily beat this on the crazy scale  .

[Zombie_Crush]

Buried the 1458 this morning 

Aside from swatting on how my multimeter actually works! lol  I think I may well mod the UglyFace with an expression input on the frequency.

Regards future builds, can also see the UglyFace sounding cool with a little APC / 8 Step or Ring mod along side. we shall see. 

[sgmezei]

Hey folks I am going to build this uglyface after trying one. Is this the best/easiest layout? thanks for the input.

[digi2t]

With, or without the LFO? Both versions are easily found on the net.