'LIGHTWAH'

[deadastronaut]

no im not wedded to the led/ ldr. in fact that would be a nice change from messing around with leds...

as long as i could still have a speed indicator led , thatd be fine...

cheers rick, i'll have a look and see whats going on in them!..(i built the quacky ages ago)

i'll try this one out a bit more and see how it goes...it nearly flashed a moment ago...

[frequencycentral]

This thread comes to mind; http://www.diystompboxes.com/smfforum/index.php?topic=81602.0

[deadastronaut]

yeah i remember that.....nice sweep...whoooooooooooooooooshyyyyyyyyyyyyyyyyyyy  .cool.

thats what im after, a nice long sweep.. to a fast wobble...

[deadastronaut]

ok i went back to my original lfo..and tweaked it around..couldnt get the other bugger to work properly...not perfect, but this will suffice...(well it works)..

i tweaked the wah freq too, a bit less shrill imo...full sweep on hammer'ons at the end...

http://dl.dropbox.com/u/7464107/waH3.mp3

note: my boogie was being a sod...wanted to be on full gain, ,  got to sort that glitch out...

[deadastronaut]

ok, i'm back on this again...

got a nice lfo sorted out...smooth ramp up n down on the led....much much better..

i nicked the lfo from the 'phozer' (thanks runoffgroove ) and changed a couple of parts to more my liking....

i took the 10nf out..and put a 1M resistor there...

been trying to get that equal slow fade up n down for ages...without the led being on more than off...!!!!...

sorted! at last.... ...used 2 leds..one for ldr..one for indicator.. using 2 helped the lfo to be more to my liking too......(i fancy i'll be using this lfo in future .....nice and equal up/down..)...

[GBlekas]

Could you post your completed schematic?

[deadastronaut]

i'm in the middle of doing it at the moment....pcb and schemo....

give me a few days...and it'll be up n running..

heres what it sounds like now...dr boogie...with pulsewah...


http://dl.dropbox.com/u/7464107/pulsewahtest1.mp3

[GBlekas]

Very cool...now what I noticed is that the effect is more obvious with the rate all the way up.
Otherwise I am kind of hearing the effect with more of the delay coming though in your clip.
I suggest trying to move the LED a little further away from the photo cell to get the deeper effect happening.

Check this clip/demo of the Cool Machine out where I tweaked the distance of the LED and photo cell.

http://m.youtube.com/index?desktop_uri=%2F&gl=US#/watch?v=ILTJ76MetE4

Nice playing, by the way! :~)

[deadastronaut]

@gblekas, linko not workingo!.^..


i'll give the led spacing a try....it isnt shrink wrapped yet!...i just cover it with a black pen top...

[deadastronaut]

@all...

is there any reason i shouldnt use a tl074 for both wah and lfo on the same ic?...would/could there be any noise issue with this?....

i read somewhere that its not a good idea!!!!..hmmmm...

[deadastronaut]

i was trolling around...and found this!...hmmmm....@#$%.

http://www.google.co.uk/webhp?hl=en#hl=en&safe=off&site=webhp&sa=X&ei=LbMBTtrLFY2XhQfVhcW4DQ&ved=0CBgQvwUoAQ&q=PULSE+WAH+WAH&spell=1&bav=on.2,or.r_gc.r_pw.&fp=46dceea8d8f599d7&biw=1920&bih=968

so due to me not wanting to get into legal wrangles over names etc i will rename it, and start a fresh thread ok.....

Aron: if you want to shut this thread down (for any potential legal reasons) feel free, i'll start another 'legal' renamed thread ok!.it doesnt bother me as ive totally redesigned the project anyway ok...

please pm me on your decision ok!. thanks rob.

[deadastronaut]

ok problem solved...

this thread and project will now be known as 'LIGHTWAH'. for those interested.    (thanks aron).

so there you have it.

heres a demo of just the manual light wah section, it will still have the lfo too of course...for the  pulsing trem type effect...but as an add on an  external ldr with light sensitivity control too....for a bit of manual invisible wahness....for fun!.

the light sensitivity control, also doubles as a fixed wah too...for a kind of treble boost.....it will all still fit in a 1590b...lfo is sorted...wah is sorted....just need to get the final layout done!..and a good durable way of fixing an ldr to the box....

excuse my old socks btw...... ...

dr boogie+lightwah...no amp...crap camera..and a cat....

schemo/layout soon-ish...

[spaceace76]

i don't think you have to rename your pedal, the wah you posted is made by a company called pulse, and it's their wah. It's not actually called "Pulsewah" like yours is, not to mention yours is LFO controlled and a completely different circuit.

by the way, love the work you're doing here!

[GBlekas]

@gblekas, linko not workingo!.^..


i'll give the led spacing a try....it isnt shrink wrapped yet!...i just cover it with a black pen top...

Thanks, Try these

http://www.youtube.com/watch?v=VED6gXc0-x0

http://www.youtube.com/watch?v=ILTJ76MetE4&feature=related

[askwho69]

i'm in the middle of doing it at the moment....pcb and schemo....

give me a few days...and it'll be up n running..

heres what it sounds like now...dr boogie...with pulsewah...


http://dl.dropbox.com/u/7464107/pulsewahtest1.mp3

wow nice playing there rob! i like it..

[oldschoolanalog]

Yeah, nice sounds & playing!
Good stuff.
Gertrude seems to like it too.

[vendettav]

wait wasn'
t this called pulsewah before? 

[deadastronaut]

@chris, yeah i see ya point..... but its a little too close for comfort to me!..

@george. yep gotcha...i pulled them apart a bit...much better...thanks man.

@vendeatta. yep it was!...

cheers guys.....i'll crack on with the schemo today ok...

then maybe someone more used to pcb design and quicker can knock one up!...(to fit in a 1590b)

[deadastronaut]

ok had a think....oh no you say...

the light wah is fine for all light conditions as its adjustable.......but not when its dark!..(i know obvious)

so heres the deal, we/i want an ldr on top or even front edge..but we/i need an led to shine across it when it is dark and to be able to break the beam of light with a foot...(when dark)


any weird and wonderful ideas?....

i thought of having the on/off led as this source, which would make perfect sense...and thought about one of those right angled led (pcb mount led) things...facing the ldr...

but then it would sort of be just on/off wah...what do you think?...

hmmmm.....

[artifus]

how about a usb socket to provide power for a laptop light? or roll your own with stiff single core wire, entwining two strands together, super bright led one end, 2.5 or 3.5mm plug for power from pedal socket at the other? plug it in and bend into position over the ldr with enough clearance to waggle a foot in. maybe a wire coat hanger would be better. hmmm, not making sense yet - need more coffee...

*edit* ...or embed an led in the sole of your shoe - a free pair of deadastronauts patented lightwah led flip-flopsTM with every pedal.