Jump to content
rushbo

Issues powering a Zoom B3 with a PowerBrick

Recommended Posts

Hi BassChat electricity experts.

For years I've powered my Zoom B3 from its own dedicated power supply - ie, the plug it came with. I'm expanding my modest board and so I thought I'd get a powerbrick to power it, along with my Smoothound wireless receiver and a Korg tuner. Unfortunately, muggins here didn't read the small print and the Zoom requires 500mA and the brick (an otherwise lovely Harley Benton Powerplant Junior) only supplies 5 x 120mA. This means the Zoom powers on for a second, then goes off when I use the brick.  It came with a Y adapter which combines two of the five outputs to a single one - with some trepidation, I tried using that and it seemed to work. I'm reticent to keep it on longer than 30 seconds in case I do irreparable damage to my beloved B3, so my question is...

...will I kill my Zoom B3, if I use the Y adapter from the Powerplant Junior to power it?

Please help an electrical numptie...

  • Like 1

Share this post


Link to post
Share on other sites

Wow, I never thought of that!

I have the same problem with a B3n, and I look forward to hearing what the Basschat collective wisdom says.

Uh, sorry for the hijack, I got all excited there!

  • Haha 1

Share this post


Link to post
Share on other sites

Not sure whether you'll kill it but just to be on the safe side I'd recommend getting a Truetone 1-Spot. I used one to power my B3 along with a couple of other pedals for several years. Cheap as chips and they handle up to 1700mA.

 

 

Share this post


Link to post
Share on other sites

For quite a while I was powering with no problems a Zoom MS-60B (which is also marked as 500mA) with an Adams Cioks, which only delivers 250mA.

http://stinkfoot.se/archives/829 has measured B3 as drawing 143mA so that's consistent with your 120mA not being enough but 240mA being ok.

Share this post


Link to post
Share on other sites

I’ve got the large blue Harley Benton Powerplant, but I still use a separate Diago power supply for the Zoom.

Share this post


Link to post
Share on other sites

So does using the Y cable double volts to 18 volts, as well as doubling the amps?

I know nothing about elecktrickery, so be gentle with me.

  • Thanks 1

Share this post


Link to post
Share on other sites

I powered my zoom b3 from a Harley Benton powerplant jr  for a long time, no harm came to it

Share this post


Link to post
Share on other sites
11 minutes ago, Woodinblack said:

I powered my zoom b3 from a Harley Benton powerplant jr  for a long time, no harm came to it

Good to know- did you use the Y adapter?

Share this post


Link to post
Share on other sites
2 minutes ago, rushbo said:

Good to know- did you use the Y adapter?

Yep. Seem to remember something came with a yellow adapter. I changed much later to a different power supply but I used that for a while.

Share this post


Link to post
Share on other sites
5 minutes ago, Woodinblack said:

Yep. Seem to remember something came with a yellow adapter. I changed much later to a different power supply but I used that for a while.

That’s the chap- brilliant news. Thanks to the Basschat hive mind from Rushbo and songofthewind. 

Share this post


Link to post
Share on other sites
Posted (edited)

It is (it comes with an adaptor doesn't it?), and it needs more than 125ma. It sort of appears to work on one output but it gets noisy and unreliable.

Edited by Woodinblack
  • Like 1

Share this post


Link to post
Share on other sites
On 05/01/2020 at 20:00, songofthewind said:

So does using the Y cable double volts to 18 volts, as well as doubling the amps?

I know nothing about elecktrickery, so be gentle with me.

Depends on the Y cable. They are typically either current doublers (leaving the voltage the same) OR voltage doublers (leaving the current the same). But not doubling both at the same time. 

The cables should specify which they are when you buy them, or be colour coded with a guide if they come with your power brick. 

Share this post


Link to post
Share on other sites

Thanks, Al, I will check the one that came with the Powerbank. Perhaps I can buy a voltage doubler cable somewhere.

  • Like 1

Share this post


Link to post
Share on other sites
15 minutes ago, songofthewind said:

Thanks, Al, I will check the one that came with the Powerbank. Perhaps I can buy a voltage doubler cable somewhere.

Try GuitarGuitar - I just got one for for £7

https://www.guitarguitar.co.uk/product/12011410194688--voodoo-lab-current-doubler-cable?gclid=Cj0KCQiA9dDwBRC9ARIsABbedBP0ZAmP6Y_M9zrZL6CKiuE1-RhUbhMNktQ-c74Bz1qX37UfWaTaonAaAiWpEALw_wcB

Share this post


Link to post
Share on other sites

Aargh, no wait it’s a current doubler I need. I told you I was no good at this elecktrickery stuff!!

Share this post


Link to post
Share on other sites

...which is what you posted, Rushbo. I truly am useless at this. I’m the kind of person who licks the iron to see if it’s hot enough.

Thanks for your help, guys.

  • Like 1
  • Haha 1

Share this post


Link to post
Share on other sites
12 hours ago, songofthewind said:

...which is what you posted, Rushbo. I truly am useless at this. I’m the kind of person who licks the iron to see if it’s hot enough.

Thanks for your help, guys.

Don't beat yourself up...I am maybe one rung further up the ladder than you, but I still can't wire a plug without looking at a diagram...

  • Thanks 1

Share this post


Link to post
Share on other sites

I can’t believe it! I’ve just found an old thread from November 2018, when I asked the same questions and got the same answers! Doh!

Share this post


Link to post
Share on other sites

Reporting back.

The splitter thingy didn’t work with the B3n, alas. The mosquito whine was still there. 
Time for a rethink. Maybe I need to spring for a Helix.

Share this post


Link to post
Share on other sites

I just upgraded my power supply in order to be able to ditch the additional power supply for my B3N and got one of these:

https://www.dv247.com/en_GB/GBP/Fame-DC-Junior/art-GIT0040359-000?campaign=PSM_UK/kelkoo&ProgramUUID=MrLAqJarZEUAAAFobL.P7Dz7#rating-area

With 500ma off each output, it should power just about anything I throw at it. Seems solid so far! 

Share this post


Link to post
Share on other sites
11 hours ago, MichaelDean said:

I just upgraded my power supply in order to be able to ditch the additional power supply for my B3N and got one of these:

https://www.dv247.com/en_GB/GBP/Fame-DC-Junior/art-GIT0040359-000?campaign=PSM_UK/kelkoo&ProgramUUID=MrLAqJarZEUAAAFobL.P7Dz7#rating-area

With 500ma off each output, it should power just about anything I throw at it. Seems solid so far! 

Does it kill the B3n?

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Recently Browsing   0 members

    No registered users viewing this page.



×
×
  • Create New...