[sdiy] Odp: Re: Euro Synth Spec

Thu Oct 26 06:31:14 CEST 2017

Interesting that so much discussion on this Power supply and protection.

Having Worked at Motorola Systems designing projects with VME (VersaModule Euro) we used Schroff for custom chassis.

Pentair has acquired Schroff some time back.

We never had issues on how to build systems as it was clearly laid out in a book printed by Schroff.

It is based on standards that stood the test of time and somehow EuroRack did not follow in the footsteps of VME.

I just crack up on some of the issues that are flogged to death in this area.

Perhaps it is time to put together a spec. that adheres to the ISO safety standards and common sense school of thought.

We are beating this topic to death I fear, but that is just my 2 pfennigs.

Terry

> On Oct 25, 2017, at 3:52 PM, Jason Proctor <jason at redfish.net> wrote:
> 
> to be fair, all of those situations (with the exception of the Mungo/Hinton thing, perchance) happen on 5U. the difference isn't the technical standard, it's the sheer number of different kinds of people using the gear.
> 
> 5U = real synth nerds
> Euro = literally everyone vaguely interested in modular
> 
> standards aren't going to help you with your inrush current. even real nerds can get that wrong :-)
> 
> but i do curse the Euro power connector every time i install or remove a module in my synth, for sure.
> 
> 
> 
> 
> On Wed, Oct 25, 2017 at 2:44 PM, john slee <indigoid at oldcorollas.org <mailto:indigoid at oldcorollas.org>> wrote:
> How do you like the nearly-daily threads on the MuffWiggler Euro forum about one or more of the below?
> 
> * why is there hum in my recordings
> * halp my recordings are noisy
> * my Radio Music fails to power up the first time I switch the power on but the second time it's fine whyyyy
> * I added <something> to my system and now <something else> isn't working
> * some random power supply issue leading to yet another flamewar between Mungo/Graham Hinton
> 
> That's not really what I have in mind when I think of spectacular synth-laden Serengeti safaris.
> 
> I had a quick browse through a few pages of the 5u forum threads and spotted nothing obviously like this. Not to say that it's not there... but it wasn't painfully obvious like it is in the Euro forum.
> 
> Let's hope that this Euro "standards committee" actually has a positive impact on things.
> 
> John
> 
> 
> On 21 October 2017 at 06:57, Tim Ressel <timr at circuitabbey.com <mailto:timr at circuitabbey.com>> wrote:
> Roman has a point, up to a point. Eurorack certainly has its problems. Roman didn't even mention the 12V rails, where 15V is so much better. But it also has its charms. 
> It sounds like Roman is against Eurorack, and that is fine. There are other formats, like 5U for example. There you have only 2 different power connectors versus the inferior one choice for Eurorack. Also fixed width panels that always seem to be too small or too big. But at least the panels are black and 1/4" jacks are so kewl and there is a spec for the font. Oh, wait...  
> This came up several years ago on my modules. I did extensive testing and found the font doesn't affect the sound at all. 
> I've never seen panels other than the usual 1.6mm, so no sure about that. Sliding nuts are a great way to torture prisoners of war. Heck, even my friend Jeph who swore by sliding nuts changed his mind when he got a case with nut strips. Of course there is a way to fix the sliding nut issue: fill the rails all the way up with nuts, then remove 1 nut for wiggle room. Rails with or without lip, I have both,  don't care either way. As for screws, yes, three different sizes is a pain in the posterior. But screws are cheap and so are Altoids cans. 
> And by the way, I have a standard jack color: It is silver ;-)
> I should also point out that there are standards for Eurorack:
> http://www.doepfer.de/a100_man/a100m_e.htm <http://www.doepfer.de/a100_man/a100m_e.htm>
> http://www.doepfer.de/a100_man/a100t_e.htm <http://www.doepfer.de/a100_man/a100t_e.htm>
> 
> Sadly, no spec for the font. 
> 
> Perhaps Roman should consider founding a new format. It sounds like he has strong opinions on how things outta be. For me though, a format that has rigid standards for every last little thing sounds like going to the zoo: see the animals safely behind cages, no risk of anything going wrong, eat some popcorn. I prefer a safari on the Serengeti: Not so safe, never know which guide you're going to get, my get eaten by a lion. That's what Eurorack is like.
> 
> --Timbo
> 
> 
> On 10/20/2017 11:45 AM, Roman wrote:
>> Why bother with color jacks since whole eurorack is a mess!
>> Power source - no specs at all, power cable - crap, power connector - mistake, mounting screws - M3 or M2.5 or inch-something, various rail types resulting in different srew lenght requirement, rails with or without lip, mounting holes in if full HP or half-HP location, sliding nuts - insanity, panel thickness and materials, from 1 to 5mm, and I haven't even touched CV ranges, neither in/out impedances, this list can go on and on.
>> And anybody considering standarize jack colors? Gimme a break. How about uniform font?
>> 
>> Roman
>> Dnia 20 października 2017 19:39 Quincas Moreira <quincas at gmail.com> <mailto:quincas at gmail.com> napisał(a):
>> I think I prefer the way Random Source does the Serge colour coding in Euro, it goes on the panel rather than on the jack. just a coloured circle around each jack. And keep it simple, just red, black and blue, more becomes messy, IMo
>> 
>> Sent from my iPad
>> 
>> On Oct 20, 2017, at 11:41 AM, Vladimir Pantelic <vladoman at gmail.com> <mailto:vladoman at gmail.com> wrote:
>> 
>> except for the Doepfer range, no other module I have uses these right angle Cliff jacks. And I don't even know where to buy the colored version from.
>> so unless I do full color print panels, I see not way to implement this scheme even if I wanted.
>> 
>> 
>> On 10/20/2017 06:05 PM, Andre Majorel wrote:
>> 
>> http://www.elby-designs.com/webtek/panther/panther-jacks.htm <http://www.elby-designs.com/webtek/panther/panther-jacks.htm>
>> I think that it would make panels look like angry fruit salads
>> and that might be counter-productive. A quick way to tell
>> outputs from inputs would be nice, though. Something like the
>> Cwejman S1 but using brightness rather than hue. Eg white for
>> outputs, black for inputs.
>> 
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> -- 
> --Tim Ressel
> Circuit Abbey
> timr at circuitabbey.com <mailto:timr at circuitabbey.com>
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