What Would Fry An Effect Pedal?, What would fry TWO effect pedals? |
|
|
|
|
Dec 13 2007, 03:26 PM
|
|
I have two pedals that seem cooked. None of them give any sound when connected and both have the on-led lit constantly.
Both of these pedals just rescently stopped working and that's why I belive there's a common denominator and I'm leaning towards a faulty powersupply, one that's all of a sudden delivers more than 9V. Anyone got any ideas on this? -------------------- My bands homepage
All time favourites: B. Streisand - Woman in Love, M. Hopkin - Those were the days, L. Richie - Hello |
 |
 
|
|
 |
Replies
|
|
|
|
Dec 13 2007, 04:32 PM
|
|
Sorry to hear it MickeM.
Have to say that I'm awash with mini transformers. One thing - whilst many deliver the same voltage they do not deliver the same current. I think it may be possible to fry an effects pedal by giving it too much current even if the voltage is correct. The other thing - lots of effects use the Roland reverse polarity pin set up - but I don't think all do. Don't know if that would fry a pedal or not though. -------------------- Get your music professionally mastered by anl AES registered Mastering Engineer. Contact me for Audio Mastering Services and Advice and visit our website www.miromastering.com
Be friends on facebook with us here. We use professional, mastering grade hardware in our mastering studo. Our hardware includes: Cranesong Avocet II Monitor Controller, Dangerous Music Liasion Insert Hardware Router, ATC SCM Pro Monitors, Lavry Black DA11, Prism Orpheus ADC/DAC, Gyratec Gyraf XIV Parallel Passive Mastering EQ, Great River MAQ 2NV Mastering EQ, Kush Clariphonic Parallel EQ Shelf, Maselec MLA-2 Mastering Compressor, API 2500 Mastering Compressor, Eventide Eclipse Reverb/Echo. |
|
|
|
|
|
|
|
|
|
Dec 13 2007, 07:37 PM
|
|
QUOTE (tonymiro @ Dec 13 2007, 04:32 PM)  Sorry to hear it MickeM. Have to say that I'm awash with mini transformers. One thing - whilst many deliver the same voltage they do not deliver the same current. I think it may be possible to fry an effects pedal by giving it too much current even if the voltage is correct. The other thing - lots of effects use the Roland reverse polarity pin set up - but I don't think all do. Don't know if that would fry a pedal or not though. This is a thing I've been wondering about. Isn't it that it's the perpiherar itself that decides the current load? Say a transformer is set to 9V and the EQ I have is connected and use 5mA that would be doable with a transformer of 9V/300mA f.ex. And things will run smoothly as I add pedal after pedal until it reaches the 300mA limit of the pedal. So if adding six delays that consume 50mA each they would be testing the limit. Like in a house where there's a 16A fuse in the kitchen, start all appliancies at the same time and things may work until you plug in the 2500W vacuum cleaner and all of a sudden all things together need 20A to run and the fuse blows. So as I have understood things it's not the transformer that's delivering 300mA but it can handle that current at a max. An EQ only needs 5mA to run, a dist pedal like 7-8mA and a Delay takes 40-50mA so it's really small amounts of current needed to run a pedal. But that's how I understood things... but then again I had to take the electronics exam twice in the university before I passed ;-) QUOTE (Smells @ Dec 13 2007, 05:46 PM) Have you tried a good/new 9v battery in the pedals just to make sure that they work instead ofusing the transformers? I`ll keep trying to look for you if I can, not getting very far with it tho atm, sorry  Thanks  Yeah I've tried a battery and it's the same, the led indicator is constantly lit, on both pedals and there's no sound.QUOTE (Andrew Cockburn @ Dec 13 2007, 05:58 PM) Sorry to disagree Tony, but ohms law dictates that even though more current is available it won't be used - if the resistance of the circuit remains constant you would have to increase the voltage to push more current through it. The reverse may however be true - if the transformer is not rated at the correct current, if it is straining to provide more current than it is capable of, its voltage would drop and that may do funny things to the pedals circuitry. A cheap meter is all you need BTW, you could probably get one for around 20 - 30 Euro I would guess, and a meter may well be helpful when you get onto the electrics of your Guitar build  Ok. Sorry I didn't see this at first. I pressed reply and then I was called away for dinner. I belive you're right. And YES, I will get that meter. I've noticed it's handy when measuring pickups and while poles in a switch is used at what position, so it's a defianeiet buy. Could aswell do it now already 
-------------------- My bands homepage
All time favourites: B. Streisand - Woman in Love, M. Hopkin - Those were the days, L. Richie - Hello |
|
|
|
|
Posts in this topic
MickeM What Would Fry An Effect Pedal? Dec 13 2007, 03:26 PM
ZakkWylde Did you use a high quality powersupply? It would h... Dec 13 2007, 03:31 PM
MickeM QUOTE (ZakkWylde @ Dec 13 2007, 03:31 PM)... Dec 13 2007, 03:34 PM
Andrew Cockburn QUOTE (ZakkWylde @ Dec 13 2007, 09:31 AM)... Dec 13 2007, 03:38 PM MickeM QUOTE (Andrew Cockburn @ Dec 13 2007, 03... Dec 13 2007, 03:41 PM
nnn
nnn
mattacuk Sorry to here your haveing issues with your pedals... Dec 13 2007, 04:16 PM Andrew Cockburn QUOTE (tonymiro @ Dec 13 2007, 10:32 AM) ... Dec 13 2007, 05:58 PM USAMAN QUOTE (tonymiro @ Dec 13 2007, 04:32 PM) ... Dec 13 2007, 11:51 PM MickeM QUOTE (USAMAN @ Dec 13 2007, 11:51 PM) Th... Dec 14 2007, 12:06 AM Andrew Cockburn The polarity is kind of important
Probably a b... Dec 14 2007, 12:12 AM MickeM QUOTE (Andrew Cockburn @ Dec 14 2007, 12... Dec 14 2007, 12:16 AM
nnn
nnn
nnn
nnn
Smells I think that Tony is onto something with the curre... Dec 13 2007, 05:46 PM tonymiro Oopps - yes i=v/r. Looooooong time since I did phy... Dec 13 2007, 06:04 PM Muris Sorry to hear MickeM
I'm really not strong... Dec 13 2007, 06:17 PM
nnn
kevin-riff-after-riff nooo dont mix a 100 odd quid effects pedals next t... Dec 13 2007, 10:42 PM MickeM QUOTE (kevin-riff-after-riff ... Dec 13 2007, 10:45 PM
nnn
Milenkovic Ivan Ehm, maybe its a dumb idea, but did you actually p... Dec 14 2007, 12:00 AM Milenkovic Ivan If you have a changable voltage on the power adapt... Dec 14 2007, 10:09 AM MickeM This is the result. I measured the switchable adap... Dec 18 2007, 03:48 PM Muris QUOTE (MickeM @ Dec 18 2007, 03:48 PM) Th... Dec 18 2007, 05:21 PM
nnn
Smells phew, thats good so at least you dont need to repl... Dec 18 2007, 04:15 PM MickeM QUOTE (Smells @ Dec 18 2007, 04:15 PM) ph... Dec 18 2007, 05:16 PM
nnn
nnn
nnn
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
