'LIGHTWAH'

deadastronaut · March 09, 2011, 09:19:05 AM

cool, glad you liked it...

schemo nearly there!...for you schematic fanatics..

it dont look right on the switching on the schematic so far.....but it works!!!!....

deadastronaut · March 09, 2011, 09:47:54 AM

right ive done the full schematic.... i just got to work a way of getting it up here!...its a cwz file..hmmmm.......and it wont export an image...

i'll try and find a pdf writer!...

~arph · March 09, 2011, 09:53:32 AM

Make a screenshot (ctrl+printscrn) and then paste in into your favourite Graphics tool.. (which should be GIMP of course

)

deadastronaut · March 09, 2011, 09:58:31 AM

right ok i'll try it.....never done that before...my pdf writer isnt having it today!...

~arph · March 09, 2011, 10:02:04 AM

Btw,

Alt+Prtintscrn only captures the active window..

deadastronaut · March 09, 2011, 10:04:42 AM

great it worked..cheers man...have to remember that..top tip!.

right here ya go guys!...

edit: corrected ...after arnoud spotted it... cheers man!..

~arph · March 09, 2011, 10:13:03 AM

Thanks! glad it worked out

~arph · March 09, 2011, 10:16:37 AM

The tremwah/pulse switch looks wrong to me... shouldn't it be opening or closing the connection between points two and three there?

deadastronaut · March 09, 2011, 10:20:34 AM

yep...it should!.good catch!.... thanks i'll alter that...still getting used to schemo's....

heres a short clip of clean sound...seeing as i got carried away on the vid with distortion etc...

first clip...tremwah..then with depth.......then pulse with depth..(notice pulse is a bit quieter)... then manual wah...no trem..

http://dl.dropbox.com/u/7464107/pulsewahtestclean.wav

askwho69 · March 09, 2011, 10:25:46 AM

Wow ROB! nice design! looking forward on this

deadastronaut · March 09, 2011, 10:27:32 AM

corrected schemo above!...

right who's making the pcb then?...any offers?.....

...

am going to mess around with the values on the wah later tonight.......try and get a bit wider range on it!...more sweep etc...

tasos · March 09, 2011, 01:40:41 PM

Quote from: deadastronaut on March 09, 2011, 10:27:32 AM
corrected schemo above!...

right who's making the pcb then?...any offers?..... ...

am going to mess around with the values on the wah later tonight.......try and get a bit wider range on it!...more sweep etc...

hey!i could make the pcb....but only programm i found online was pcb wizard....if you guys like it i can begin that...probably now!

~arph · March 09, 2011, 03:26:17 PM

Ok, I just spent some time with the circuit. It's very nice.
I expanded it such:

I used two separate LDR's for the Tremolo and Wah, this way we don't get a volume loss in pulse mode.
I have an earth and space interface (antenna) controlling an LED and two LDR's pointing to that for Depth control.

I we do some smart wizardry with a rotary switch we can get the following:

1. Wah -> Just the wah controlled by the antenna
2. Wahmolo -> Wah fixed or by pot , tremolo depth controlled by antenna
3. Tremowah -> Tremolo and wah, wah controlled by the antenna, tremolo depth fixed/or with a pot
4. Tremawolo -> Wah AND trem depth controlled by antenna
5. Pulse -> Wah and trem controlled by LFO, depth controlled by antenna

My guess is that the last two sound the same. So if we drop the last one we can do this with a 4P3T.

deadastronaut · March 09, 2011, 05:32:09 PM

@arnoud...

were gonna need a bigger box...

.... cool ideas!!!...what's the earth antennae?...is that like the proximity sensor?...

@tasos, go for it, i have my box ready to go already..for this version...1590b.

i might have to bite the bullet and learn express pcb..or eagle!....arghhhhhh.....

Hides-His-Eyes · March 09, 2011, 06:03:24 PM

Learn eagle

expressPCB is false economy in terms of your time

deadastronaut · March 09, 2011, 06:40:09 PM

cheers hhe, i'll take a look.....i feel a steep learning curve heading my way!....

edit:

got bored and thought i'd do a vero version.just for the hell of it!......i'm a glutton for punishment!...

not verified, but looks ok to me!..but you get a free bonus duck picture too.....

ronnie · March 10, 2011, 07:58:04 AM

Do you have a layout and pcb, or could you send the actual Diy layout creater
file, we could print the pcb from that, I don't understand vero layouts
because I can't see the traces, thanks for a great project

Ronnie

~arph · March 10, 2011, 08:01:35 AM

Hi ronnie,

There is no other layout then this vero layout.
As for the traces,

The horizontal lines are connected (labled with the letters a,b, c etc. )

tasos · March 10, 2011, 08:11:22 AM

hello....i need two things before i begin the layout...
a better quality of the schematic...[if there is this one is fine....my e-mail is available on my profile...]
and lastly i need the dimensions of the 1590b box please....

~arph · March 10, 2011, 08:13:47 AM

Quote from: deadastronaut on March 09, 2011, 05:32:09 PM
@arnoud...

were gonna need a bigger box... .... cool ideas!!!...what's the earth antennae?...is that like the proximity sensor?...

Hammond BB I guess..

Yes, I am talking about the proximity sensor ala the zvex probes.. but we use the enclosure as the antenna.. (use isolated jacks!!)

By the way I replaced the 555 oscillator with a single opamp oscillator as in the Little Angel chorus. I changed some values there to increase the output level and run it through an NPN for the LFO led.

This way we only need a single TL074

and a transisor.

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'LIGHTWAH'