9v power source.

Quattroste

I got a couple of 9v power supplies from work. One was 600Ma and the other 1000Ma. I tried both of them in my Vox Big Ben pedal but none of them worked. The documentation that comes with the pedal says it will work with a 9v power supply but doesn't state the Ma value.

Is there a standard Ma value for guitar pedals?

Maccattack

are you able to change the polarity? that might do it.

Quattroste

Maccattack wrote:

are you able to change the polarity? that might do it.

No. (Short answer )

feylya

Are you sure the supplies are DC and not AC? And I hope for the sake of your pedal that they're rated mA and Ma. Otherwise you're using Mega amps!

Rustar

Also, hope you checked tip polarity *before* you tried the supply...you can ruin equipment that way.

If you have an electronics store nearby, they usually have multi-voltage wall warts with a selection of different tips for 10-20 dollars.

Quattroste

:eek:

The box says 9v. It doesn't AC or DC or Ma or mA.

I buying batteries on the way home to see if it still works. There was no fizzing or popping or banging and I only connected the jack to the pedal and checked if it came on.

Worried now.

Rustar

Quattroste wrote:

The box says 9v. It doesn't AC or DC or Ma or mA.
Worried now.

Yer scarin' me, Quattroste! You need 4 things to power a piece of equipment like that.
a.) Proper tip polarity
b.) Proper rectification type (AC or DC)
c.) Proper voltage
d.) Proper current range (usually in milliamps for equipment like that, mA's)

I hope you didn't find some old lawnmower power supply or something!!! :eek: :eek:

Edit: you also probably have to determine what kind of house current it draws on, US or European!

68 lost souls

Yeah, if they dont work I bought a multi supply for E5 on liffey street and it does both polarities, all standard power ratings up to 12v and a load of different jacks, If you want you can pm and Ill tell you the shop.

Maccattack

68 lost souls wrote:

If you want you can pm and Ill tell you the shop.

tell us all. for future reference....

Eoin Madsen

feylya wrote:

And I hope for the sake of your pedal that they're rated mA and Ma. Otherwise you're using Mega amps!

It would actually make absolutely no difference. The current draw is dictated by the appliance not the supply. The more available the merrier.

A 600 mega amp power supply would be gigantic anyway. Not to mention pointless, since it's capacity would exceed the maximum current of a domestic outlet by a factor of thousands.

1000mA at 9v is more than enough for your average pedals. You can run 4 or 5 Boss pedals off a mere 200mA. Even if it's a very high current pedal, you'd probably still get it to come on, just with limited operation (bad distortion etc). I'd guess the problem is more than likely that the polarity is wrong. Reversed polarity is pretty common in guitar pedals. The AC/DC mismatch is a strong possibility as well.

Rustar

Eoin Madsen wrote:

A 600 mega amp power supply would be gigantic anyway.

Yeah, but that's EXACTLY the kind of thing Quattroste would drag home with him! :v: :v:

68 lost souls

Maccattack wrote:

tell us all. for future reference....

Is it not against the rules to plug a shop?

It wasn't me!

Nope, post away.

68 lost souls

Ok, it was in hector greys, just beside the 2 euro shop at the side entrance to Arnotts. If anyone doesnt understand Ill try and explain better if you let me know.

Quattroste

Thanks for the help all. It seems it was the AC/DC thing after all. I had AC adapters and the pedal is DC9V.

I think I will just get rechargable batteries instead.

conzy

You can buy variable voltage power supplies in any Euro city/ knick knack type shop for around €3 they have 3v,4.5v,6v,9v,12v and loads of connectors and you can change polarity, i think they are 600ma

I have a pod xt and that uses 2000ma ( 2 thousand mili amps):eek: :eek:
but its a 9v AC adapter