'LIGHTWAH'

[GBlekas]

Listening to your videos now....I think I like all your stuff!

[deadastronaut]

 ha ha, cheers, and yep i have gone blind   

there is a thread on here all about etching boxes,by the master of etching slade...here is the 'etched enclosures' thread btw..

http://www.diystompboxes.com/smfforum/index.php?topic=85803.0

its the same way you do a pcb, laser toner print your image (backwards) sand your box..clean..then iron on the image..let cool, then peel off..

any spots that didint get covered by the toner use nail polish on..put littlematch sticks onthe face of the box in unetchable parts to support the box..

mix up some strong ferric, lay the box in it face down, agitate, for around 20minutues..then pull out and rinse and use toothbrush to get in the nooks n crannies...

then sand again, spray or dawb paint into the etch then sand again..its all in the preparation really...i like to laquer mine to keep em shiny too...thats about it......

but there is a pdf on here somewhere showing all stages of it...i'll see if i can find it ok..

here ya go...

http://dl.dropbox.com/u/3565959/%5BTutorial%5D%20Making%20a%20Multicolor%20Etching.pdf

: anyway, yeah pedal space was a concern, but i never use batteries only a psu...and it was still cramped..

thats interesting about the ticking only when the bottom went on...hmmmm....

you pedal looks nice and simple.. sounds great! thats definately a nice/better sweep too....... ..

it has more of a sine like my original 2nd video using the 555 led fader..its much more of a sweep than the sine i'm using now...i much prefer the 555 sine but its just
that damn ticking...hmmmm...

i still have the one i knocked up with the 555, so i may have to bastardize it a bit..

[GBlekas]

Try powering up your oscillator with a bettery and the twin t circuit with another battery.
Don't share ground or any of that and see if you still hear the ticking.
If so it's induction
At that point it could be a layout issue..
Bread board each separately with only the led and photo cell near each other.

I would get the ticking with the bottom late on so I would slowly put it on until the ticking appeared and that brought me to the transistor   Base to collector with a 51 pf cured the issue

Thanks for the link ....that etching is crazy cool...didn't realize it would work on aluminum!

[deadastronaut]

Try powering up your oscillator with a bettery and the twin t circuit with another battery.
Don't share ground or any of that and see if you still hear the ticking.
If so it's induction
At that point it could be a layout issue..
Bread board each separately with only the led and photo cell near each other.

I would get the ticking with the bottom late on so I would slowly put it on until the ticking appeared and that brought me to the transistor   Base to collector with a 51 pf cured the issue

Thanks for the link ....that etching is crazy cool...didn't realize it would work on aluminum!

yep i breadboarded the wah and lfo on seperate boards, and there was no tick at all when i first tried it all...lust the led facing the ldr on the other board..
so its definately induction..(which i dont quite understand)..
ahhh 51pf i'll try that asi still have the gnognofasinii layout built...cheers for the tip ...i'll give it a go...

yeah etching is the nuts...as long as the toner is nice and thick(best quality print)..but i still cover larger areas of non etched sections with nail varnish just to stop any tiny pitting..
safe than sorry etc...

cheers man.rob.

[GBlekas]

Let me know how it works out for you.
That ticking drove me crazy! 

[deadastronaut]

hi man, just found a good led fading circuit....goes from bright to dim to of and back in a cycle over 4 seconds..

got it on bread at the moment, cant get the bugger to work yet... when i do i'll mod a speed control on it too...

heres a video of a similar one...using the lm358

http://www.youtube.com/watch?v=ys8ly6rArkM&feature=related

[ppaappoo]

here ir the scheme!!! for that led fade.

[deadastronaut]

cheers pappoo, yeah i saw that very one, i dont have a 1458 though!...

edit: will that work with a lm358n?...

edit:..just checked alternatives...looks like it might be ok...get back to ya'll soon...

[GBlekas]

hi man, just found a good led fading circuit....goes from bright to dim to of and back in a cycle over 4 seconds..

got it on bread at the moment, cant get the bugger to work yet... when i do i'll mod a speed control on it too...

heres a video of a similar one...using the lm358

http://www.youtube.com/watch?v=ys8ly6rArkM&feature=related

Cool but way too slow as is.

I wonder if with two discharging caps if it will have even more of the ticking issue...maybe not the way they are set up and the value of those caps

Is ppapou Greek or what?

[ppaappoo]

cheers pappoo, yeah i saw that very one, i dont have a 1458 though!...

edit: will that work with a lm358n?...

edit:..just checked alternatives...looks like it might be ok...get back to ya'll soon...

that circuit has given me the same person who uploaded the video. Any dual op-amp will work

[deadastronaut]

@gblekas, i'll mess around with the cap values and try a pot for speed...

@cheers pappoo, i'm trying it now...cool. thanks guys.. (small world eh?)...

edit: yay...got it going..its really not that slow....i'll tinker with it..


edit: swapped the 100k.. for 82k..much better, the led actually goes off...with the 100k it was nearly off....but not quite..

now to get the speed slow and fast....hmmmm....tinker tinker...

aha..swapped that bottom 47k for a 100k pot...great..slow and fast......great!...

tried a 200k pot...great for really slow...like a slow push forward and back on a wah treadle.(slow phaser type lfo)...hmmmm....and good fast still too...

also hi bright blue seems better for fade off/ fade in..more defined visually......better than red...

great little circuit guys!...much much better with the wah....no tick either.....i'm a happy bunny!..

edit: stick 100uf's in there and a 1M pot and you can make a cup of tea and drink it before it comes back on....

[deadastronaut]

one thing with that latest scheme, leds have to be parallel, not in series...works fine, will light 4 hi bright leds if need be...

i'll bread the morley again today, and try it out...and compare to the coloursound wah....




22k in place of the 47k, as per ricks suggestion...cool. cheers rick.

[~arph]

You can use that same NPN trick with the sine LFO I posted.
The LED fade cicuit you have now is a triangle LFO. Just use what you like the best.

[deadastronaut]

@arph, gotcha, yep i read it was a triangle wave, but it dims and brightens very evenly....sort of siney..

its a variation on the one you posted..

i readjusted the schemo above...

[deadastronaut]

@arph, what could i do to this schemo, to make it sine and triangle?....just a thought?

[frequencycentral]

Try reducing the 47k (between pins 7 and 3) to 22k.

[deadastronaut]

cheers rick, i'll try it now...thanks man.

[deadastronaut]

cool, yeah seem more smooth, evenly pulsed with a 22k in there!...

led doesnt go right off now ...

thanks rick,

[arma61]

Hi m8

I'm following this since couple of days and breadboared the latest LFO posted, it works and having a Proel Wah gut laying arounb I just sub the pot with an LDR and all is working fine (thank Rob and all!).
Just one thing I think is needed.. ok I'm not really a good guitar player and wah is making my playing even worse! but I think we need 2 buttons (momentary) in this effect, one to keep the LED on and one to keep it off. I saw people using the wah someting keep the toe down or up toward the end of the solo (or phrase..), so with these 2 push buttons you can stop the waving and stick to the choosen position for the time needed.

Just a think m8s

Cheers
Armando

[deadastronaut]

hi armando, welcome aboard the crazy wah thread...

yeah sounds good to me, on the original pulsewah, it has the option of a manual control too, so you could switch between the pulsing,

and a normal wah as well...glad you got it going...

edit: which wah did you go with?..morley or colorsound?..