Wanted - 12Volt 5 Amp linear power supply .

If it's for a router I'd be very surprised if it's getting near half of that. The smps they are supplied with are just over spec as a precaution for something running 24/7.

Not that I am a technical expert but we have a similar situation with smps supplies for instruments at my work that also run off 12v (battery chargers etc). Some are also spec to 5A, they are max output just below 1A even when charging 4 large batteries.

Of course if you can get a 5A one, great, but I reckon 2.5A will be more than sufficient.

Please don't take my advice as gospel though, just adding my experience with similar devices.


I'm sure others (more experienced technically) on here will give better advice too!

Ah, okay I see, wow that's some serious router there, Christ.

I'm sure someone out there can knock up a decent one for 1-200 I'd say.

Yes the MCRU ones do seem rather dear.

Andrew, what I suspect is the in rush current not the constant current mode, I doubt if it takes more than 1200ma when in use.

I have had a few of these type, take a big glop of current on turn on and then the psu can't cope with the in rush and then just stumbles. You just rerquire a large capacitance reserve to cope with the turn on draw imho

You can try this, not really sure it will cure it, but worth a go.

A temporary solution would be to fit enougyh capacitance of the correct value in series would suggest say 20Kuf @ 16 Volts would be a good place top start, you could make a small enclosure stick the caps in there chop the end of the cable that feeds the ropute (leave about 6 inches on the plug end. CHECK polarity before doing that first. Wire caps in series and take the output from the caps to the remaining length of wire and plug. That should be enough to cope with the turn on bump. However you would need to charge up the caps FIRST before plugging in the router.

I would ask Alan he would be able to guide you here Andrew

Paul Hynes PSU over on Art of Sound would do the job, but it's £1200 which is maybe more than you want to spend.

HERE

Yeah, Paul went through troubled times when he had to move to the Western Isles of the West coast of Scotland to look after his elderly parents and try and run his business from there too. Too many orders with cash up front and not enough hands to help, he also tried to take on some workers to build them for him but that didn't work either.

I dealt with him when I bought the psu parts for my Technics 1210 deck and he seemed a really genuine helpful guy, I think he just got in over his head, and knowing how hard it is to l look after 1 elderly parent I can't imagine trying to look after 2.

In fact I still have some of the 1210 psu parts as I ended up with an extra set after Ianmac from AoS forum fitted his own versions for me when we ran into issues with Paul's ones ( my fault not Pauls).

Paul sent me replacements but they weren't really needed and I never got around to swapping them in.

Okay the replacement LPSU arrived today and once unpacked the SMPS on the HUB 5 was unplugged and They while system switched off . Then strict routine power up the Virgin Router first wait the interminable right to ten minutes for it to reboot and stabilise . Then switches and SFP convertors which are really fast . Then my LIV Zen for LMS which I have to say also reboots quite slowly . Yay all back on line and then down stairs to power up the system . Now when I started on the LPSU trip with player , Mutec , router , server while I noticed when critical units had better supplies I also noted the replacements were cumulative . Any SMPS in the chain was a down grade I thought way back then . Well glad to say I am not going mad getting that last SMPS out to of the chain is making music sound better . A feeling of relaxation and quiet has returned to singers and players . Sound stages now have real solid feel . I had not really noticed this issue when the SMPS wallwart was being used but once it has been removed the change is very noticeable . Happy with this result and as the LPSU burns in and warms up things will probably improve a bit further . Thanks for all the advice above just getting a correctly specified unit was easier for me and the cost used was very low so that is a bonus .

Sorry Dave not quite sure it has no name or anything to identify it and was apparently sold on a boat supply site . It is very solidly built and it works which is all I can ask . It has continued to sound better as it played through the afternoon so still very happy .

Maybe a link would be helpful for anyone else looking.

Sorry I missed your last post for some reason, did you have to make up the DC cable?