My first forays into etching PCB
Worked great first time in all cases. Also done a Brown Source but not decaled yet.
First up, the Deep Blue Delay (Madbean Sea Urchin)
(http://i1178.photobucket.com/albums/x374/LaceSensor1/New%201590bs/P1020550.jpg)
(http://i1178.photobucket.com/albums/x374/LaceSensor1/New%201590bs/P1020549.jpg)
The Light Wah, devised by Dead Astronaut on diysb
(http://i1178.photobucket.com/albums/x374/LaceSensor1/New%201590bs/P1020554.jpg)
(http://i1178.photobucket.com/albums/x374/LaceSensor1/New%201590bs/P1020555.jpg)
And lastly a GGG Dod 440. A friend bought the kit and his friend then borked the build, so I gutted and redid the board etc.
Sounds pretty neat!
(http://i1178.photobucket.com/albums/x374/LaceSensor1/New%201590bs/P1020547.jpg)
(http://i1178.photobucket.com/albums/x374/LaceSensor1/New%201590bs/P1020546.jpg)
Whoa. That light wah looks incredible. What's going on with the LDR? I'm not familiar with this circuit...
Fantastic, really like the Urchin. One quick q what is the Cap you have used for C20 in the bottom right, looks pretty big for 100pf ?
Quote from: marmaliser on November 18, 2011, 07:44:18 PM
Fantastic, really like the Urchin. One quick q what is the Cap you have used for C20 in the bottom right, looks pretty big for 100pf ?
It's a WIMA 100pF for some reason their small values are chunky.
Quote from: TheCobbenator on November 18, 2011, 06:01:13 PM
Whoa. That light wah looks incredible. What's going on with the LDR? I'm not familiar with this circuit...
The wah is either rate driven by an LFO or by ambient light sensitivity by the LDR next to the footswitch.
So it will cycle u and down like a phaser, with controls for rate , volume and filter.
Or it will work by waving your foot or other body part over it like a wah pedal.
Pretty damn cool. All the files are over at DIY stomp boxes.
Dang! Nice work, I just finished my first etch pcb today... such a cool feeling :)
Quote from: nzCdog on November 19, 2011, 05:01:44 AM
Dang! Nice work, I just finished my first etch pcb today... such a cool feeling :)
Yeh it's really cool.
I'm trying enclosure etching now. It's harder tHan pcb sadly...
Lace those look great.
Thanks 8)
Refinished the Sea Urchin as an Etch, my first stab at an enclosure etch.
(http://i1178.photobucket.com/albums/x374/LaceSensor1/New%201590bs/IMG_3442.jpg)
:o I liked it before!!!
But nice etch 8)
I like very much! Are the labels shown in the first picture what you used to block out the etchant?
No I had to do the standard toner transfer. I changed the bit round the footswitch too.
I don't suppose you could share a link to the Lightwah info on the DIYstompboxes site could you? I'm having trouble finding it.
Great builds and finishes too. Nothing short of amazing.
Here you go
Well worth building it's a great LFO wah and the light sensing is a fun add on
Low parts count too considering.
http://www.diystompboxes.com/smfforum/index.php?topic=88582.msg818154;boardseen#new
Thanks that's brilliant. What LDRs and LEDs did you use? Are the ones on the board just wrapped in heat shrink?
1M / 10K all round with super brite red LEDs iirc
Yeah just shrink wrapped.
Hey, what are you using for the VR on that Sea Urchin? My LM7805 is frickin huge compared to what you've got in there....
You need the 78L05
http://www.taydaelectronics.com/servlet/the-121/IC--pls-5-100MA-78L05/Detail
Quote from: eldanko on December 08, 2011, 03:01:27 AM
Hey, what are you using for the VR on that Sea Urchin? My LM7805 is frickin huge compared to what you've got in there....
yeah 78L05 to-92 package.
Ive got a bunch if you just want one.
That is exactly what I need :)
Haha, thanks for the help fellas. Appreciate the offer, but I've gotta make a SmallBear order this week anyway, and it looks like they have a 78L05 that will work!
Out of question: the one I have looks to have the same output voltage, but it's rated at 1A instead of .1A. Will that work, or will it blow something up?
It will work, i have to admit to doing exactly the same thing when i built a one chip chorus.
Check the pin outs to be safe though
(http://www.eleinmec.com/figures/020_01.gif)