MarshallForum.com
 
Go Back   MarshallForum.com > Music Gear > The Tone Zone
LIKE MarshallForum on Facebook FOLLOW MarshallForum on Twitter
  
Like Tree3Likes
  • 2 Post By HOT TUBES 70
  • 1 Post By chuckharmonjr

Reply
LinkBack Thread Tools Display Modes
Unread 04-17-2011, 12:05 PM   #1 (permalink)
Senior Member
 
Join Date: Jul 2010
Posts: 947
What happens when you feed 18 volts into a 9 volt pedal?

Hey guys,

I've owned 18 volt pedals in the past as well as 9 volt pedals, question is...

What happens if you feed 18 volts into a 9 volt pedal? I guess doing this the other way around will not hurt the pedal or will make it run differently, but, will adding the extra juice on a 9 v pedal damage it in any way?

Thanks!
LEOVAN83 is offline   Reply With Quote
Alt Today
Marshall Amps

Beitrag Sponsored Links

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on MarshallForum.com
   
Unread 04-17-2011, 12:34 PM   #2 (permalink)
Senior Member
 
HOT TUBES 70's Avatar
 
Join Date: Oct 2008
Location: Saskatoon , Canada
Posts: 10,574
Re: What happens when you feed 18 volts into a 9 volt pedal?

Quote:
Originally Posted by LEOVAN83 View Post
Hey guys,

I've owned 18 volt pedals in the past as well as 9 volt pedals, question is...

What happens if you feed 18 volts into a 9 volt pedal? I guess doing this the other way around will not hurt the pedal or will make it run differently, but, will adding the extra juice on a 9 v pedal damage it in any way?

Thanks!
YES ! DO NOT DO THIS !

18v into a 9v based pedal will be instant trouble !

Most common pedals carry a diode and a cap on the DC input , 18 v being put into a pedal that was never designed to handle that amount will result in burnt components and a big repair bill .
80s dude and JayCM800 like this.
__________________

Custom Pedals & Pedal Mods

Building great sounding pedals one at a time the old fashion way
HOT TUBES 70 is offline   Reply With Quote
Unread 04-17-2011, 01:06 PM   #3 (permalink)
Senior Member
 
Join Date: Jul 2010
Posts: 947
Re: What happens when you feed 18 volts into a 9 volt pedal?

Oh thanks man! Just wanted to double check on that. A friend of mine is going to let me borrow a Maxon OD9, and I was gonna try it in both 9 and 18 volts, but, I guess I won't be doing that! hehe
LEOVAN83 is offline   Reply With Quote
Unread 04-17-2011, 01:13 PM   #4 (permalink)
Senior Member
 
Hollowbody's Avatar
 
Join Date: Jan 2009
Location: Tulsa
Posts: 2,121
Re: What happens when you feed 18 volts into a 9 volt pedal?

Is there a way to solder some kind of resistor in the cable supplying DC to drop the voltage to the pedal or will that cause thermal or other issues?
Hollowbody is offline   Reply With Quote
Unread 04-18-2011, 12:16 PM   #5 (permalink)
Senior Member
 
Marshall & Moonshine's Avatar
 
Join Date: Jul 2010
Location: sitting on a surfin' board, when given a choice
Posts: 901
Re: What happens when you feed 18 volts into a 9 volt pedal?

It's something that would be worth looking up on Maxon's website. A lot of Fulltone pedals are designed to handle 18v, as well as many others. It's supposed to increase headroom,introduce new dynamics, blah, blah, blah...
Just make sure the manual/website/FAQ/Customer Support says it's ok for THAT pedal. But if you plug 18v into a pedal that can't take it, well, you'll soon be able to tell if silence is really golden.
__________________
Tuesday's gone.
Marshall & Moonshine is offline   Reply With Quote
Unread 04-18-2011, 12:59 PM   #6 (permalink)
Senior Member
 
SmokeyDopey's Avatar
 
Join Date: Mar 2011
Location: Argentina
Posts: 9,525
Re: What happens when you feed 18 volts into a 9 volt pedal?

I nkow this is not supposed to be done, but what if accidentally I plugged 12v into a 9v pedal?
Is it INSTANT damage and burned components, or if its plugged out instantly, could it still work?

(I accidentally did that and never tried it again cuz I don't have another 9v transformer, my brother plugged it in to a 220volt outlet, and the transformer was for 110v so it pretty much melted).
SmokeyDopey is offline   Reply With Quote
Unread 04-18-2011, 01:57 PM   #7 (permalink)
Senior Member
 
chuckharmonjr's Avatar
 
Join Date: Mar 2010
Location: About as far south in Alabama as you can go without swimming
Posts: 7,577
Re: What happens when you feed 18 volts into a 9 volt pedal?

Gotta love fried wall wart. Its whats for dinner.
Marshall Mann likes this.
__________________
JCM2000 DSL100
JMD-1 100 Watter
JMP800 2204
1960A
1960B
2061BX Clone
MG412A
Seismic Audio 2-12
Joe B Sig Goldtop
Tobacco Burst Les Paul
Black Les Paul Custom
Honey Burst Les Paul
R8 Les Paul in Tea Burst
ES-175 in Cherry
EDS-1275 in White
Fender Strat in Tobacco Burst


http://soundcloud.com/chuck-harmon-1/woman


http://soundcloud.com/chuck-harmon-1/webs-and-dust
chuckharmonjr is offline   Reply With Quote
Unread 04-18-2011, 02:13 PM   #8 (permalink)
Senior Member
 
Marshall & Moonshine's Avatar
 
Join Date: Jul 2010
Location: sitting on a surfin' board, when given a choice
Posts: 901
Re: What happens when you feed 18 volts into a 9 volt pedal?

Quote:
Originally Posted by chuckharmonjr View Post
Gotta love fried wall wart. Its whats for dinner.
Mmmmmmm!!!!! Yummy! I'll take mine charred please.
__________________
Tuesday's gone.
Marshall & Moonshine is offline   Reply With Quote
Unread 04-18-2011, 02:23 PM   #9 (permalink)
Senior Member
 
SmokeyDopey's Avatar
 
Join Date: Mar 2011
Location: Argentina
Posts: 9,525
Re: What happens when you feed 18 volts into a 9 volt pedal?

I think I ****ed a couple pedals then...... Mother ****ER
SmokeyDopey is offline   Reply With Quote
Unread 04-18-2011, 02:32 PM   #10 (permalink)
Senior Member
 
Marshall & Moonshine's Avatar
 
Join Date: Jul 2010
Location: sitting on a surfin' board, when given a choice
Posts: 901
Re: What happens when you feed 18 volts into a 9 volt pedal?

Quote:
Originally Posted by SmokeyDopey View Post
I nkow this is not supposed to be done, but what if accidentally I plugged 12v into a 9v pedal?
Is it INSTANT damage and burned components, or if its plugged out instantly, could it still work?

(I accidentally did that and never tried it again cuz I don't have another 9v transformer, my brother plugged it in to a 220volt outlet, and the transformer was for 110v so it pretty much melted).
"Accidentally"??? Ha ha. Yeah, right! Save your lies for the ladies, my friend! Curious little bugger!
Like I said above, check the info for EACH specific pedal to find out what kind of power supply is allowed/preferred. Some pedals are supposed to sound better at the higher voltages, but are made with the capability of running on 9v just because of the prevalence of 9v batteries. I'm going to venture a guess on this next part, so get out your salt:
I bet the distinction between pedals that are limited to 9v and pedals that can handle 12,16, and 18v (and higher, in rare cases) is based largely on the line between digital and analog effects, with a further subdivision into the quality of pedal design/build.
If you find that your pedal is built for it, you may discover a whole new pedal hidden inside your old one. In which case, let that MoFo ride the lightning!
__________________
Tuesday's gone.
Marshall & Moonshine is offline   Reply With Quote
Unread 04-18-2011, 02:50 PM   #11 (permalink)
Senior Member
 
SmokeyDopey's Avatar
 
Join Date: Mar 2011
Location: Argentina
Posts: 9,525
Re: What happens when you feed 18 volts into a 9 volt pedal?

haha the thing is I didnt even LOOK at the transformer.

What my bro did, was plug the 110v-9v into a 220v socket, and burnt the transformer.
He found another transformer lying around that I thing it was for a cordless phone or something, and put it back where I left my 9v transformer. He never said anything, he thought it was the same.

I plugged it in a MT-2, and made a LOUD horrible sound, so I unplugged it thinking what the hell happened. I look at the transformer and I see it says 12v.
I'm scratching my head thinking where did this come from.
I asked my brother and he confessed that he replaced it cuz he forgot to plug the 110v-9v into a 220v-110v transformer (I know, I bought the transformer there in the US where the voltage is 110, and here in argentina its 220v).
He didn't say anything thinking I was gonna get mad for burning the 9v transformer, but now I'm even more made that its possible that I ****ed my MT-2 and a BOSS ME-50. (I don't really use these pedals, but I was counting on the money to buy something better, now I'm at $0)
SmokeyDopey is offline   Reply With Quote
Unread 04-18-2011, 02:51 PM   #12 (permalink)
Senior Member
 
SmokeyDopey's Avatar
 
Join Date: Mar 2011
Location: Argentina
Posts: 9,525
Re: What happens when you feed 18 volts into a 9 volt pedal?

(by the way, my brother is a drummer, which explains his lack of knowlegde for these thing lol)
SmokeyDopey is offline   Reply With Quote
Unread 04-18-2011, 03:00 PM   #13 (permalink)
brp
Senior Member
 
brp's Avatar
 
Join Date: Nov 2010
Location: Vancouver, Canada
Posts: 5,382
Re: What happens when you feed 18 volts into a 9 volt pedal?

Quote:
Originally Posted by SmokeyDopey View Post
haha the thing is I didnt even LOOK at the transformer.

What my bro did, was plug the 110v-9v into a 220v socket, and burnt the transformer.
He found another transformer lying around that I thing it was for a cordless phone or something, and put it back where I left my 9v transformer. He never said anything, he thought it was the same.

I plugged it in a MT-2, and made a LOUD horrible sound, so I unplugged it thinking what the hell happened. I look at the transformer and I see it says 12v.
I'm scratching my head thinking where did this come from.
I asked my brother and he confessed that he replaced it cuz he forgot to plug the 110v-9v into a 220v-110v transformer (I know, I bought the transformer there in the US where the voltage is 110, and here in argentina its 220v).
He didn't say anything thinking I was gonna get mad for burning the 9v transformer, but now I'm even more made that its possible that I ****ed my MT-2 and a BOSS ME-50. (I don't really use these pedals, but I was counting on the money to buy something better, now I'm at $0)
The pedal is definitely NOT going to instantly fry neccesarily just from plugging in a 12v adapter. It's more important that the polarity of that 12 volt adapter was correct for the pedal (center pin negative?).
Can you put a 9v battery in the pedals and see if they work with that?
__________________
JMD:1 Believer
Recommended: On Floor Audio mods by HOT TUBES 70, Martimus Maximus tubes from MartyStrat54, NOS tubes from RiverRatt

-- My Studio --
"If we can't laugh at the dead, we have no business killing people"
brp is offline   Reply With Quote
Unread 04-18-2011, 03:04 PM   #14 (permalink)
Senior Member
 
SmokeyDopey's Avatar
 
Join Date: Mar 2011
Location: Argentina
Posts: 9,525
Re: What happens when you feed 18 volts into a 9 volt pedal?

I guess I can try that. The thing is I don't even waste my money on those batteries cuz theyre too expensive here. So you get an idea, its as if I told you one of those batteries would cost you 20 dollars. Ir pretty ridiculous, so I soon as I get a hold of a 9v transformer I'm gonna try it out.

And yeah, pretty sure the polarity was correct (I hope lol)
SmokeyDopey is offline   Reply With Quote
Unread 04-18-2011, 03:06 PM   #15 (permalink)
Senior Member
 
Marshall & Moonshine's Avatar
 
Join Date: Jul 2010
Location: sitting on a surfin' board, when given a choice
Posts: 901
Re: What happens when you feed 18 volts into a 9 volt pedal?

Damn, dude! That sucks! I don't know of any regular Boss pedals that will handle 12v, but some things will "survive" it for a short time.
I won't make a list, but my little brother ****ed up a TON of my stuff and never said anything. Some of it he still denies to this day, that lying little **********. In the movie, Han Solo had TWO arms. Why did my action figure have one?
Oh well. I don't know the laws in Argentina, but in the U.S., you're not allowed to shoot family members.
The damage to your pedals MAY not be as bad as it seems. It's possible that the guilty adapter had a reversed polarity to what the pedal needs to work it's magic on your sound. That might not do any damage, but could make the sound you're describing. I wouldn't toss the pedals until you try them with a battery or new correct power supply.
__________________
Tuesday's gone.
Marshall & Moonshine is offline   Reply With Quote
Unread 04-18-2011, 03:08 PM   #16 (permalink)
Senior Member
 
Marshall & Moonshine's Avatar
 
Join Date: Jul 2010
Location: sitting on a surfin' board, when given a choice
Posts: 901
Re: What happens when you feed 18 volts into a 9 volt pedal?

Ha ha! See what happens when you take too long to post a "Quick" reply?
__________________
Tuesday's gone.
Marshall & Moonshine is offline   Reply With Quote
Unread 04-18-2011, 06:03 PM   #17 (permalink)
Senior Member
 
V-man's Avatar
 
Join Date: Jan 2009
Posts: 3,820
Re: What happens when you feed 18 volts into a 9 volt pedal?

FWIW, MXR states that you CAN go 18v into their 9v carbon copy (which gives more tonal options). I asked the tech myself after reading and this was confirmed, BUT after asking if my 104 Distortion plus could do the same, I got a definite "NO".
V-man is offline   Reply With Quote
Unread 04-18-2011, 06:21 PM   #18 (permalink)
Senior Member
 
SmokeyDopey's Avatar
 
Join Date: Mar 2011
Location: Argentina
Posts: 9,525
Re: What happens when you feed 18 volts into a 9 volt pedal?

Yeah you cant really shoot family members here either... lol

Well I hope it survived then.
As soon as I try it Ill come back to thisa thread and update the results.


thanks!
SmokeyDopey is offline   Reply With Quote
Unread 04-19-2011, 07:13 AM   #19 (permalink)
Senior Member
 
marvar's Avatar
 
Join Date: Mar 2008
Posts: 103
Re: What happens when you feed 18 volts into a 9 volt pedal?

How many of you guys really check the voltage on those adaptors?
I decided to measure my wall warts-
Out of 6 I checked, only 2 were really in the 9 volt range, the rest ran anwhere from 11 to 17 volts, ALL OF THEM WERE MARKED AS 9 VOLT 200MA !
The worst offenders were the BOSS PSA consistantly running in the 17 volt range.
You might already be putting more than 9volts into your pedals!
marvar is offline   Reply With Quote
Unread 04-19-2011, 07:42 AM   #20 (permalink)
Senior Member
 
Marshall & Moonshine's Avatar
 
Join Date: Jul 2010
Location: sitting on a surfin' board, when given a choice
Posts: 901
Re: What happens when you feed 18 volts into a 9 volt pedal?

Quote:
Originally Posted by marvar View Post
How many of you guys really check the voltage on those adaptors?
I decided to measure my wall warts-
Out of 6 I checked, only 2 were really in the 9 volt range, the rest ran anwhere from 11 to 17 volts, ALL OF THEM WERE MARKED AS 9 VOLT 200MA !
The worst offenders were the BOSS PSA consistantly running in the 17 volt range.
You might already be putting more than 9volts into your pedals!
Once again, Voodoo Lab pays for itself.
__________________
Tuesday's gone.
Marshall & Moonshine is offline   Reply With Quote
Unread 04-19-2011, 07:45 AM   #21 (permalink)
Senior Member
 
SmokeyDopey's Avatar
 
Join Date: Mar 2011
Location: Argentina
Posts: 9,525
Re: What happens when you feed 18 volts into a 9 volt pedal?

Quote:
Originally Posted by marvar View Post
How many of you guys really check the voltage on those adaptors?
I decided to measure my wall warts-
Out of 6 I checked, only 2 were really in the 9 volt range, the rest ran anwhere from 11 to 17 volts, ALL OF THEM WERE MARKED AS 9 VOLT 200MA !
The worst offenders were the BOSS PSA consistantly running in the 17 volt range.
You might already be putting more than 9volts into your pedals!

Ok, then I guess I am relieved! And it wasn't even 18v, it [SAID] it was 12v.
SmokeyDopey is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 03:36 PM.


Find us on Facebook!   Follow us on Twitter!

Our Network: PRS Guitar Forum | Luthier Forum | SG Guitar Forum | Les Paul Forum | Music Gear Forum | 7 String Guitar Forum | Acoustic Guitar Forum

MarshallForum proudly supports St. Jude Children's Research Hospital

Copyright © 2005-2014, MarshallForum.com. All Rights Reserved.