Snarling Dogs Whine-O Wah [schematic]
I recently bought a Snarling Dogs Whine-O Wah and it's absolutely amazing. It's the best sounding Wah I ever tried.
But it's really really noisy!
So I replaced all the resistors (with metal film) and the caps with better ones, but no appreciable result.
Next step is to eliminate the extremly loud (probably LED caused) pop-noise.
I love this wah, but I also hate it. It's soooo noisy!!
Does somebody has ideas for troubleshooting or a solution ??
But it's really really noisy!
So I replaced all the resistors (with metal film) and the caps with better ones, but no appreciable result.
Next step is to eliminate the extremly loud (probably LED caused) pop-noise.
I love this wah, but I also hate it. It's soooo noisy!!
Does somebody has ideas for troubleshooting or a solution ??
So here it is! I'm really sorry for this mess but I just tried to follow the circuit from the board, so it got a little bit...confusing
By the way, I fixed the popping noise when switched on or off.
By the way, I fixed the popping noise when switched on or off.
- Attachments
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- Whine-O parts.jpg (22.19 KiB) Viewed 7771 times
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- Whine-O.pdf
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- Fredenando
- Breadboard Brother
Here are the internal shots of the silver canister from a Wonder Wah version in a 2008 post in this forum:
- rs
- Breadboard Brother
Ok thanks.
Thanks for the reply, i've seen those photos, my question is about the value of the inductor, and if there's more than one.
I've tried to put two inductors in siries like the schaller bow wow, but the values i've used didn't perform as i expected.
Thanks for the replys guys.
Thanks for the reply, i've seen those photos, my question is about the value of the inductor, and if there's more than one.
I've tried to put two inductors in siries like the schaller bow wow, but the values i've used didn't perform as i expected.
Thanks for the replys guys.
- prehistoric
- Solder Soldier
yes, these sound very nice. at least the mold spore wah does, and as far as i can see, this wah is the same as the wah portion of the spore.
i want you guys to look at something -
see the 33k and the 470k in parallel at Q1 C to inductor?
why are there two there when you could just put a 30k there?
i think it is an old timey ' music store mod', you simply lift one end of the 33k that normally parallels the inductor and put the one end over on the 470k/Q1c node. viola! instant mod wah. note also that the normal 33k parallel the inductor is not there! it is because in the music store , you mod with what's on the board! just move a resistor - haha.
so again, why not just eliminate the 470k altogether? whoever made the original schematic just copied the modded wah exactly with no thought, i assume.
lowering that 470k to 30k widens the Q, and would normally make a really spikey sounding wah, but kenny ameliorated it by a couple things:
-the 100k pot is linear. this means the wah moves more slowly over the spike. kenny told me he chose lin for parts availablity.
-there are several .001uf to ground to kill the spikey treble. (C3, C11)
-the 47 uf to ground off inductor is 10 times larger than normal. this gives a fat slushy response, again, helping quell an otherwise spikey wah. a smaller cap here would not only raise the freq center, but would give a faster response with quicker charge/discharge time.
i want you guys to look at something -
see the 33k and the 470k in parallel at Q1 C to inductor?
why are there two there when you could just put a 30k there?
i think it is an old timey ' music store mod', you simply lift one end of the 33k that normally parallels the inductor and put the one end over on the 470k/Q1c node. viola! instant mod wah. note also that the normal 33k parallel the inductor is not there! it is because in the music store , you mod with what's on the board! just move a resistor - haha.
so again, why not just eliminate the 470k altogether? whoever made the original schematic just copied the modded wah exactly with no thought, i assume.
lowering that 470k to 30k widens the Q, and would normally make a really spikey sounding wah, but kenny ameliorated it by a couple things:
-the 100k pot is linear. this means the wah moves more slowly over the spike. kenny told me he chose lin for parts availablity.
-there are several .001uf to ground to kill the spikey treble. (C3, C11)
-the 47 uf to ground off inductor is 10 times larger than normal. this gives a fat slushy response, again, helping quell an otherwise spikey wah. a smaller cap here would not only raise the freq center, but would give a faster response with quicker charge/discharge time.
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- Posts: 3
- Joined: 13 Aug 2014, 12:10
Hey,
Nice to find a schematic of this baby. I've had one laying around for a couple of years now. I never play it because when I turn it on I get an instant volume boost, even with the volume-pot on zero.
I tried to increase the value of the pot, didn't help. I think I can see why now: R13. Would replacing the R13 with a higher value resistor help me tame this wah?
Cheers.
Nice to find a schematic of this baby. I've had one laying around for a couple of years now. I never play it because when I turn it on I get an instant volume boost, even with the volume-pot on zero.
I tried to increase the value of the pot, didn't help. I think I can see why now: R13. Would replacing the R13 with a higher value resistor help me tame this wah?
Cheers.
Information
- Posts: 3
- Joined: 13 Aug 2014, 12:10
Hey Guys,
I checked the schematic again, now I'm thinking I might need to lower the value of R13 in order to get rid of the volume boost.. Correct?
Grtz
I checked the schematic again, now I'm thinking I might need to lower the value of R13 in order to get rid of the volume boost.. Correct?
Grtz
- prehistoric
- Solder Soldier
yes, that should work. let us know what you find out !Moustache00 wrote:Hey Guys,
I checked the schematic again, now I'm thinking I might need to lower the value of R13 in order to get rid of the volume boost.. Correct?
Grtz
- tube-exorcist
- Resistor Ronker
Because it is a "Snarling Dog" Wah. It is not the only Snarling-Dog-product which contains such silly mistakes. Have a look at the Black-Dog and Tweed E Dog - which are derivates of the EH Hot Tubes - and compare it with the schematic of the original unit.prehistoric wrote: ......
I want you guys to look at something -
see the 33k and the 470k in parallel at Q1 C to inductor?
why are there two there when you could just put a 30k there?
.....
There was a cheap chinese slave cloning some products on demand and he made those mistakes and nooone recognized them because the produced units at least did "something" - that is the only reason for such obscurities in Snarling Dog pedals.
"I've noticed there's an inverse relationship between cost of gear and talent. If you need the most expensive gear to get decent tones, then you suck as a player."
- digi2t
- Degoop Doctor
Wouldn't increasing the value of the pot also increase your volume? I mean, the higher the value, the further the signal is from ground, right? Shouldn't you try decreasing the pot value instead?Moustache00 wrote:Hey,
I tried to increase the value of the pot, didn't help. I think I can see why now: R13. Would replacing the R13 with a higher value resistor help me tame this wah?
Cheers.
Information
- Posts: 3
- Joined: 13 Aug 2014, 12:10
Well,
Maybe decreasing the pot is a good idea. I tried increasing the value up to 1meg and it didn't make a difference at all.
In the mean while I tried installing a 'standard volume pot right before the switch. It works but I do have the impression the sound gets more distorted when I tilt the pedal back. I really need to do some more exprimenting..
Maybe decreasing the pot is a good idea. I tried increasing the value up to 1meg and it didn't make a difference at all.
In the mean while I tried installing a 'standard volume pot right before the switch. It works but I do have the impression the sound gets more distorted when I tilt the pedal back. I really need to do some more exprimenting..
I'm trying to patch together a whine-o-wah for my guitar player.
The wah-pot is toast in the unit I have to work with.
Prehistoric notes in his post the the wah-pot is 100k linear but the picture shows an unusual pot.
Does anyone know where I can find a 100k linear OEM type replacement pot. D'Andrea no longer has anything to do with Snarling Dogs and has no info about any of the pedals.
Many thanks in advance for any info anyone can provide.
Dave in SoCal
The wah-pot is toast in the unit I have to work with.
Prehistoric notes in his post the the wah-pot is 100k linear but the picture shows an unusual pot.
Does anyone know where I can find a 100k linear OEM type replacement pot. D'Andrea no longer has anything to do with Snarling Dogs and has no info about any of the pedals.
Many thanks in advance for any info anyone can provide.
Dave in SoCal
- digi2t
- Degoop Doctor
I think what may come close to the OEM look might be the Bourns wah pot, also known as the Life Pot.
- pinkjimiphoton
- Transistor Tuner
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- my favorite amplifier: my own, a redesigned princeton
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there's videos that totally suck of about 90 of 'em here:
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tube-exorcist wrote:Because it is a "Snarling Dog" Wah. It is not the only Snarling-Dog-product which contains such silly mistakes. Have a look at the Black-Dog and Tweed E Dog - which are derivates of the EH Hot Tubes - and compare it with the schematic of the original unit.prehistoric wrote: ......
I want you guys to look at something -
see the 33k and the 470k in parallel at Q1 C to inductor?
why are there two there when you could just put a 30k there?
.....
There was a cheap chinese slave cloning some products on demand and he made those mistakes and nooone recognized them because the produced units at least did "something" - that is the only reason for such obscurities in Snarling Dog pedals.
OR it's because 470k and 33k in parallel = 30 k, a NON standard value, and easier to add two resistors than order a special value make sense? a LOT of people do that kind of stuff, and it's been standard practice in electronics for, oh, forever... only we DIY'ers will go out of our way for having specific non-standard parts kicking around. i mean... let's get REAL for a second.
"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
Slava Ukraini!
- pinkjimiphoton
- Transistor Tuner
Information
- Posts: 1242
- Joined: 12 Sep 2010, 19:03
- my favorite amplifier: my own, a redesigned princeton
- Completed builds: so fucking many goddamn pedals it would make your ass hurt just looking at 'em all!!!!!
there's videos that totally suck of about 90 of 'em here:
http://youtube.com/666pinkster
gimme a like: http://facebook.com/pinkjimiphotonrocks - Location: new world order land (formerly la-la land)
- Has thanked: 358 times
- Been thanked: 480 times
- Contact:
dave_socal wrote:I'm trying to patch together a whine-o-wah for my guitar player.
The wah-pot is toast in the unit I have to work with.
Prehistoric notes in his post the the wah-pot is 100k linear but the picture shows an unusual pot.
Does anyone know where I can find a 100k linear OEM type replacement pot. D'Andrea no longer has anything to do with Snarling Dogs and has no info about any of the pedals.
Many thanks in advance for any info anyone can provide.
Dave in SoCal
talk to joe gagan, he can hook you up a pot that will work. he set me up nicely when i needed to find a decent replacement for my shin ei fuzzwah. he can set you up with gears too so you can adjust the sweep of the pot better. about 20 bux shipped. tell him i sent ya dave. he's in new mexico, so he could hook ya up pretty quick if ya need it.
"When the power of love overcomes the love of power the world will know peace."
Slava Ukraini!
Slava Ukraini!
- prehistoric
- Solder Soldier
i am real. a 30k resistor is not hard to find anywhere in the world. it is just a silly oversight with no thought behind it.pinkjimiphoton wrote:\tube-exorcist wrote:Because it is a "Snarling Dog" Wah. It is not the only Snarling-Dog-product which contains such silly mistakes. Have a look at the Black-Dog and Tweed E Dog - which are derivates of the EH Hot Tubes - and compare it with the schematic of the original unit.prehistoric wrote: ......
I want you guys to look at something -
see the 33k and the 470k in parallel at Q1 C to inductor?
why are there two there when you could just put a 30k there?
.....
There was a cheap chinese slave cloning some products on demand and he made those mistakes and nooone recognized them because the produced units at least did "something" - that is the only reason for such obscurities in Snarling Dog pedals.
OR it's because 470k and 33k in parallel = 30 k, a NON standard value, and easier to add two resistors than order a special value make sense? a LOT of people do that kind of stuff, and it's been standard practice in electronics for, oh, forever... only we DIY'ers will go out of our way for having specific non-standard parts kicking around. i mean... let's get REAL for a second.