RipCord (12V) for Digitakt

Elektron Gear Digitakt
#1

Hello!
I just bought this Ripcord: http://myvolts.com/product/42621/Power_Supply_and_Chargers/Ripcord_USB_to_12V_DC_power_cable_compatible_with_the_Elektron_Digitakt_Drum-sampler

And it arrived today, but it doesn’t power up my Digitakt!

Does anyone use this cable for the Digitakt? It powers my Novation Circuit perfectly, but when I plug it into the Digitakt and to my Macbook USB port, I get a message on my mac saying ’ USB accessories disabled '. When I try to use an iphone charger, it also powers my Circuit, but nothing on the Digitakt! Do you know why?

Thank you for reading,
Miguel

#2

You probably won’t be able to power the Digitakt off a laptop’s USB port. It requires a decent amount of current. The people who have had success powering a DIgitakt using the Ripcord were powering off of a powerbank of decent spec. There’s a whole thread on this, I believe. Search is your friend.

2 Likes
#3

Return it and buy a battery that can power the Digitakt directly. I wouldn’t trust that thing connected to your expensive computer or to your expensive Digitakt.

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#4

Thank you! I will search for a good, powerful battery

#5

Thanks, yes they were probably. I find it strange that not even an iphone power adapter works… It powers my Circuit perfectly which is also 12V, but not the Digitakt. I mean, an iphone power adapter should provide enough energy right?

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#6

Digitakt requires 2000mA (2 amps) @ 12V. An iPhone charger only supplies 1.2 amps at 5V.

V=IR Ohm’s Law

If you convert the voltage to 12 volts then current or resistance has to go down(math equation above, I hate math actually) Since resistance can’t change you actually get less current than the 1.2 amps the iPhone charger provides.

You’d need even more than 2amps @ 5V to power the Digitakt.

5 Likes
#7

That little thing only puts out 1 Amp, or 5 Watts. Once you convert that up to 12 volts, you’re only getting around 0.4 Amps, if my maths is correct. That’s nowhere near enough to juice the Digitakt.

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#8

That seems close enough to get the picture to me.

0.42 amps rounded or 0.4 amps rounded further.

Also I = P/V

If you need 24 Watts (what the Digitakt uses) @ 5V you’d need a “5V 4.8 amp power supply”.

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#9

Just when I thought you’d appreciate me.

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#10

You beat me to it!

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#11

haha, I don’t hate people who like math, just math. Mostly because I don’t always remember to carry something or forget some little rule and screw the whole thing up. I’m better at visualizing how things work (physics and science) than I am at crunching numbers.

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#12

I think you have great cerebral skills and logic.

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#13

Thanks Tchu :blush:

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#14

By the way, I’m a math teacher. Don’t tell anyone.

Music is all about math, ears and/or feelings.

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#15

For what it’s worth, the DT doesn’t require 2 amps, that’s just the max capacity of PSU-3. I think someone did some tests on the DT/DN/OT etc. and found that the DT required something less than 1 Amp. I think it was about 0.8-0.9 Amps. Again, I think all this info is in the other thread about battery packs for Digitakt.

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#16

Awesome! I don’t “really” hate it. It’s very cool and I use it all of the time. Most everything I create involves math.
I just struggle with keeping track of where I am with it. It started happening around Calculus time when my Algebra wasn’t solid.
I had to go back and take Algebra again to learn what I forgot.

I dropped out of high school; ended up getting a GED and then going to college for Electronics years later (which I finished).

My math issues probably stem from not consistently taking each math course year after year like you’re supposed to. So it’s me really. I would have graduated college with a 4.0 if it wasn’t for that stinking B+ I got in math freshman year of college.

5 Likes
#17

Hi, any suggestion of a battery that could power the DT directly?

1 Like
#18

Hi, I just bought one that seems to work great. I haven’t played with it a lot yet but it does work and in an hour I had about 9% of capacity used only: Digitakt : External battery / Power pack options?

#19

I use this one with the rip cord:

I get at least 4 hours of use from one charge

#20

I’ve used a Ripcord with a Dtakt, Octatrack and Heat. Works fine. As others say, just get a proper battery and you’ll be fine.