Mad Professor - Snow White Auto Wah [traced]
- Ice-9
- Degoop Doctor
Information
@Riesling Thanks for the eagle upload, i have just had a quick look over the schematic and have spotted 1 error. You need to make a connection from pin 6 of IC2b to C4 and R9.
It's fairly straight forward, if you want to start it , press start. You can work out the rest of the controls for yourself !
No silicon heaven ? preposterous ! Where would all the calculators go ?
No silicon heaven ? preposterous ! Where would all the calculators go ?
The update
I made some minor routing changes and replaced the 100µ/35V cap with a 100µ/25V
The archive contains one pdf with complete project information and two EAGLE files
By the way: NOT FOR COMMERCIAL USE
Have fun with it
I made some minor routing changes and replaced the 100µ/35V cap with a 100µ/25V
The archive contains one pdf with complete project information and two EAGLE files
By the way: NOT FOR COMMERCIAL USE
Have fun with it
- sinner
- Old Solderhand
Information
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riesling, this looks really nice, thanks matey!!!
So someone (like me) needs to make the from that pdf file and try it?
I could do that if it wasn't etched on the top and bottom...
I could do that if it wasn't etched on the top and bottom...
- audioguy
- Resistor Ronker
I just built a second SWAW nd this one has a serious volume drop. I've replaced the LM324, no change, replaced the j201 I had in for the N-Jfet, swapped it for an MPF102 same issue. Its quacking really nicely, but its cutting the volume drastically.
Any possible culprits before I start ripping it apart?
Any possible culprits before I start ripping it apart?
- lietuvis
- Breadboard Brother
Finished my pedal,have not put decal yet,because have no printer at home.sounds realy good on my bass,will try to modify filter section for octave down by lowering filter caps.By the way maybe someone know what capacitors should go instead of these 22n to get octave down.then it maybe just add a switch to choose filter range not only via bias.
- chicago_mike
- Tube Twister
Wich layout did you use? It looks real neat.lietuvis wrote:Finished my pedal,have not put decal yet,because have no printer at home.sounds realy good on my bass,will try to modify filter section for octave down by lowering filter caps.By the way maybe someone know what capacitors should go instead of these 22n to get octave down.then it maybe just add a switch to choose filter range not only via bias.
Skyline FX 2013
- chicago_mike
- Tube Twister
thanks!
Skyline FX 2013
- ckyvick
- Resistor Ronker
+1 dimebugg layout verified, I used 2n5089s and a 2n7000- works just like the pgs demo(bias and decay are backward, not sure if thats my error or the layout)
heres how she turned out(df painted 1590C) running into a muff with the amz mod.
http://memberfiles.freewebs.com/55/22/5 ... 002211.jpg
heres how she turned out(df painted 1590C) running into a muff with the amz mod.
http://memberfiles.freewebs.com/55/22/5 ... 002211.jpg
You know you can fix that by changing the wires between lugs 1 and 3 of the pot, right?ckyvick wrote:bias and decay are backward, not sure if thats my error or the layout
Nice build, beautiful swirl
- ckyvick
- Resistor Ronker
yes, i do know thatSyder wrote:You know you can fix that by changing the wires between lugs 1 and 3 of the pot, right?ckyvick wrote:bias and decay are backward, not sure if thats my error or the layout
thanks for the compliments on the build, I bought the enclosure from dragonfly a while back, his swirls are the sexiest! these are more current:
http://www.rockbox.com/FORMgallery1.htm
Hey guys,
could someone tell me how much current this Pedal takes? (Dunno if thats the right word, its the thing you measure in Ampere )
I want to know if its worth putting a battery in the pedal or not. Doesnt seem like there is a verified layout with the DC-Jack on top and Battery, right?
Maybe someone is so nice and measures the current for me?
could someone tell me how much current this Pedal takes? (Dunno if thats the right word, its the thing you measure in Ampere )
I want to know if its worth putting a battery in the pedal or not. Doesnt seem like there is a verified layout with the DC-Jack on top and Battery, right?
Maybe someone is so nice and measures the current for me?
- lietuvis
- Breadboard Brother
This is from mad professor website about snow wah :Jaeger wrote:Hey guys,
could someone tell me how much current this Pedal takes? (Dunno if thats the right word, its the thing you measure in Ampere )
I want to know if its worth putting a battery in the pedal or not. Doesnt seem like there is a verified layout with the DC-Jack on top and Battery, right?
Maybe someone is so nice and measures the current for me?
Supply voltage: 9VDC
Current consumption at 9VDC: 15mA
Input inpedance: 500K
Output impedance: 1K
Max input -20dBV
Complete bypass (true bypass)