EBS Pedals

[broadblik]

I have got a Multidrive, and an EBS Octaver here tomorow.

But it doesn't work with a daisy chain, well, it did for a bit, but now doesn't. so, alternatives? Power Brick?

Regards
Darragh

[B.C.]

Originally Posted by broadblik

I have got a Multidrive, and an EBS Octaver here tomorow.

But it doesn't work with a daisy chain, well, it did for a bit, but now doesn't. so, alternatives? Power Brick?

Regards
Darragh

Ok, so first thing, what are you using for a daisy chain? Whats the voltage/ampherage rating?

I don't have much experience with EBS so what is the polarity on the pedals? Should show a diagram near the jack to see if tip is positive or negative.

Once we have that, we can go from there

[broadblik]

I'm just using a daisy chain that I bought from a shop somewhere, says GYC on it.

On the jack it says 5.5x2.5

and has a diagram that looks kinda like this

+o)-

The supply is 9V at 650mA, it works fine on its own with the EBS and my EHX kit, but not daisychained

[JanusZarate]

EBS pedals use 9VDC and employ a "Boss standard" jack (2.1mm barrel, center-negative).

If it stopped working on a daisy chain, I'd be a bit concerned. Time to troubleshoot the cause before you start trying to power more pedals...

What pedals are you using?

EDIT: 5.5 x 2.5?!? That's the wrong barrel. Unless EBS changed their barrel size (which I highly doubt), that can't be right.

Got a photo of the diagram? It looks like you a drew a center-positive one...

[broadblik]

No it actually says on the EBS stuff 'does not work with daisy chains'

All I'm asking is can I overcome this?

All I'm running is an EHX Bass Muff and an EBS Multidrive.

[JanusZarate]

Which one does it resemble? It probably won't have circles around the +/- signs.

EDIT: It says "does not work with daisy chains" now? Huh. I'm guessing yours is brand-new?

It wasn't the case with their old pedals...

To overcome it, you'd have two options:

1) Isolated-output supply (expensive)
2) Individual wall warts (bulky, but cheap)

[broadblik]

Center positive output

[broadblik]

I got it 2nd hand, no idea how new it is, can someone recommend me a good isolated power supply, that I can easily get a hold of in the UK?

[JanusZarate]

Wow. Then they did change the design. I don't think any old ones were like that...

Usually, center-positive jack wiring is only used when PNP transistors are used in the design (sometimes called "positive ground").

As far as UK-applicable isolated power supplies... check the usual suspects:

Voodoo Lab Pedal Power 2+ (expensive, and you'd need the UK version)
T-Rex Fuel Tank Jr. (much cheaper, and I think there's a UK version? Not sure.)
BBE Supacharger (not sure if there's a UK version)

There are others, too.

Hmm... you know what? Send a PM to TaySte_2000. He probably can help you. He has a massive pedalboard.

[McDreads]

I run a multicomp and an octaver (both approx. one year old) together with 5 or 6 other boxes on a daisy chain (1000 mA) with no problems at all. Can you explain 'But it doesn't work with a daisy chain, well, it did for a bit, but now doesn't.'?

[broadblik]

Well it worked with my daisy chain for the first day I got it, but now it doesn't, the Bass Muff still works but not the EBS.

should I get a higher current Power supply?

[JanusZarate]

Nope... that won't solve anything. Current is not your problem. Both of your pedals have incredibly low current draws, anyway.

The plugs on the daisy chains have to be 2.1mm center-negative if the Bass Big Muff works on them.

See, this is what confuses me... if the barrel spec on the EBS is now 2.5mm, then how does a 2.1mm daisy chain plug even fit on it at all?

None of this is adding up...

[stflbn]

I'm using a 1 Spot 5-output with my EBS pedals and have been fine.

[broadblik]

I checked both a 2.1 and a 2.5 work on both pedals..

[niftydog]

If it worked once on the daisy chain, then it will work again. DON'T waste your money on new equipment before you properly troubleshoot your current stuff!

Originally Posted by broadblik

I'm just using a daisy chain that I bought from a shop somewhere, says GYC on it.

On the jack it says 5.5x2.5...

it works fine on its own with the EBS and my EHX kit, but not daisychained

I'm all-in on the power supply connector being the wrong size for your daisy chain. 2.5 is not the "boss standard" connector, 2.1 is. This mismatch could result in an intermittent failure, just as you have observed.

Originally Posted by broadblik

No it actually says on the EBS stuff 'does not work with daisy chains'

Where? What "stuff"?

Man, you'll do yourself, and us, a big favour if you can be more explicit and clear when you're describing what's going on. For instance, in the quote above it's not entirely clear whether you are talking about the jack on the daisy chain or the socket on the pedal.

Then this;

Originally Posted by broadblik

I checked both a 2.1 and a 2.5 work on both pedals..

"work"? What, as in they both plug in or they both succeed at powering up the pedal?

I reckon about 50% of the faults people post here are not actually faults at all: just inadequate explanations and a lack of methodical testing.




Anywho... if the plug on the power supply is indeed 2.5mm, then it's the wrong size for the socket of the daisy chain and will be causing intermittent connection. If you move the connection around a bit you'll probably find it comes and goes as connection is made and lost.

If the power supply works with the individual pedals, then there's nothing wrong with the power supply - don't waste your money replacing something that is in good working order.

If it worked once, then unless something has changed, it should work again. This leads me to believe the polarity of the connector is probably correct.

and finally, is the pedal black or grey? If it's black, it's less than about 10 years old and it should have a "boss standard" power connector, which is centre negative, NOT centre positive.