#164

Going to be filling the last available space in my 4ms 48X pod with a Three Sisters. I’ve already used all of the 4 connectors of the built in power. Can I get something like this, and a couple 10-pin to 10-pin cables to power two modules from one of the 16-pin sources on the board? I’m pretty sure I’ll be below max amperage based on the specs.

specs 48x:
  • +12V max 1.4A
  • -12V max 0.65A
  • +5V max 1A

modules:

  • crow: 60mA +12V, 56mA -12V
  • maths: 60mA +12V, 50mA -12V
  • mangrove: 58mA +12V, 54mA -12V
  • pico out: 20mA +12V, 7mA -12V
  • dual LPG: no power
#165

Those pods have plenty of power, I would use something like this : flying bus power

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#166

Has anyone here ever replaced the actual power supply socket on a Eurorack case or other thing? I have a Make Noise 6u monorocket case and it has a barrel-style power plug. It often loses power when the plug is touched. I got a replacement power supply from Make Noise many years ago and it exhibited the same problem, leading me to believe the problem is with the pin on the receiving side. I’d like to replace this plug and socket with that has a more stable connection, perhaps one with separate terminals, but I never have I ever cut into or modified my case and wouldn’t know where to source an appropriate socket and power supply.

Does anyone have any tasty morsels of advice?

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#167

I did this with my Pittsburgh Move208 case last year - swapped for an intellijel 80w board. I did have to modify my case to accommodate the 'jel power switch which is rectangular (Pitts was a circle), and file the same shape into the interior plate holding the power entry/switch to the case, as I wanted to use the 'jel hardware.

yeah a bit of busywork and my case is slightly blemished but that doesn’t bug me. Not as hard as I was expecting.

I don’t know the Make Noise board accessories so they may fit perfect easily into the available space. I have no good advice if you do need to expand that port, get a fresh exacto blade for the vinyl wrap, I guess.

#168

Thinking about building a diy case. Rather than buying another power supply, I’m considering reusing the power supply out of a power 4ms pod. Has anyone done this?

#169

Not sure if this has been discussed here, but the Metasonix RKP is a great small footprint power supply. 5 Amps, and if you use a passive flying bus cable on each of the six power headers it balances out to around an amp on each connection (though I try to keep it about 650-700amps per header)

Great product: http://www.metasonix.com/index.php/rkp-power-system

#170

A common type of connection for a case is a 2.1mm barrell connector like this one here.

https://www.taydaelectronics.com/hardware/dc-power/dc-power-jack-2-1mm-enclosed-frame-with-switch-external.html

This can be used on a metal enclosure also. You would need to desolder the switch from the old one and solder it to the new one. See if you have any gear power adaptors with a 2.1mm connector and see if it fits your case (not plugged in of course)

You could also take a look at the solder joints near the connector and perhaps reflow them first if need be.

#171

Anybody experienced with powering MN skiff and 0-coast/0-ctrl from the same source with splitter like this?

Make Noise modules: design, usability, theory, philosophy, etc
#172

I’m using a Y-adapter for my Shared System and 0-coast. Make sure you have enough power for all your modules including the 0-coast and including a generous marging.

#173

I had a look last night at the power supplies for my 0-Coast and 0-Ctrl.
The 0-Coast power supply has an output of 0.4A, the 0-Ctrl is 0.2A. So you want a power supply with at least 0.6A rated output.
I’d err on the side of caution and get a 1A one. Remember this is the maximum that it can supply, not what it will supply!

#174

ok
so
hypothetically

if someone grabbed a 12v 1amp AC/DC power supply instead of a 12v 1amp AC/AC power supply

and plugged it into the case
with modules in it
… would that be a gigantic problem
… for that person …

Eurorack: discussion, advice, learning, questions
#175

I think it would be okay: I’d recommend you just plug in the correct power supply and see what happens.

1 Like
#176

i don’t have the one that comes with the case or the manual, hence the mix up - obviously should’ve researched more before trying something

just taking to the internet to see if i can avoid moderately panicing before the proper adapter comes in the mail :upside_down_face::slightly_smiling_face::upside_down_face::slightly_smiling_face::upside_down_face::slightly_smiling_face:

#177

ok well, based on some research on AC>DC rectifiers / guesswork / iffy electrical knowledge I think what I effectively ended up doing here is sending in the +12V but no -12, which I will assume + hope is harmless : )

(also explains the slight bit of correct behavior I got out of my digital module)

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#178

You hit the nail on the head. If anything AC goes into the DC that can be bad news depending on how protected the device you’re plugging into is but DC into AC isn’t too bad unless of course is your source Voltage >36V. 33-36V is about the max Input range I’ve noticed on DC/DC converters.

I’ll throw out I’m a real big fan of the metatronics mods PSU.

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#179

looking to change / upgrade my PSU. I’ve been temporarily using two uZeuses since my Trogotronic went south a few months ago and they aren’t really cutting it on the -12v (my Falistri seems to exhibit performance issues).

my current draw is ~ 2400 mA +12v, 1350 mA -12v, 0 mA 5v (though I do occasionally swap in modules requiring the 5v rail). this without Grid plugged into Ansible.

I’m steering clear of Trogotronic after the failures I experienced (had one busboard die, followed a few months later by the entire PSU). at the moment, the only PSU I can find that would accommodate my power needs while maintaining the relative portability of my case is the Intellijel TPS80W. curious if there are any others I’m failing to consider?

#180

It very much could be a problem. Some modules need both +12v and -12v or you can damage the modules. eg ones with a v2164 vca chip without diode protection (which isnt described on the datasheet) that lose the -12v rail are very likely to destroy the v2164. I know of a number of modules that do not have protection for this…

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#181

with the Intellijel TPS80W unavailable at the moment, I added a 4ms Row Power 45 (believe it’s newish). not quite as much power on the +12v rail as Intellijel’s - I still need one of my zeuses for Ansible/Grid - but a good amount of -12 (1400 mA).

I’ve only had it installed for a few hours, but even daisy chaining with abandon, it seems clean enough by euro standards.

#182

Let’s talk :zap: power :zap:

I was looking at adding a Doepfer 183-9 to my rack so I can power my SQ-1 and a Zoom recorder without needing batteries or other power supplies. It’s just a handy 2 hp unit with 4 USB sockets.

THEN I thought - is it possible to power my Octatrack as well? Has anyone done this? My OT power supply is usually set up somewhere else and while I could just get another one, I was wondering if I could also just power it with the rack.

The case in question is a Doepfer base case with a beefy supply that I’m not even tapping to half its capacity, fully laden.

It looks like this module by Synthrotek is exactly what I would want, but… I’d also rather buy from almost any other company. Anyone know of other power supply/through modules like this? Or should I just get another PS for the OT and move on with my life?

Eurorack: discussion, advice, learning, questions
#183

The OT requires 12V @ 2A and the Power Pak limits the current draw on 12V to 750mA. So this is out of question. The PSU3 in the Doepfer base case delivers 2000mA so you wouldn’t want to hook your OT up to that. With that case you’ll be tied to mains power anyway so I don’t see why you’d not want to use the original elektron power supply. As for misplacing the PS: I bought a second one for my Digitact and attached it to the back of my modular with velcro :slight_smile: