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Old 24th February 2010, 03:17 AM   #1
OliG is offline OliG  Canada
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Default Where do you get your transformers?


I'm looking for a toroidal transformer to power an Aleph 5. I see that the rails should be ~34v. So I guess I need a 25-30v transformer that provide 650-800VA. The question is : where do you guys get yours?

I've looked at digikey, mouser, partconnections and piltron. Piltron do not have stocks in canada, and partexpress offers avel linberg transfos, but none have adequate voltage/wattage...


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Old 24th February 2010, 04:28 AM   #2
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I got mine here: Toroidal Transformers for power supplies and isolation in medical, instrument, audio and control panel transformer applications. . they will get you any specification that you need.it will take approximate one week ( made here in the USA). the quality is top notch.I strongly recommend them.
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Old 24th February 2010, 04:44 AM   #3
pooge is offline pooge  United States
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in Canada, you could try this guy:

SumR - Richard Sumner Technology:: Primrose
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Old 24th February 2010, 10:35 PM   #4
OliG is offline OliG  Canada
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Thanks for theses suggestions! I already contacted them.

It seem that the most adequate AC voltage for an Aleph 5 is 2v28V, but I did not see any seller that offer this voltage. I guess I will have to go custom, but before, I would like to know if it is possible to get a 2x30V transfo and reduce voltage on rails with a regulator or voltage divider? I already did this using a LM317T regulator but it was a tiny power supply carrying a lot less current than the 1.5A than the lm317 can output.

If im right, with a 2x30V at 800VA, that would be almost 10A per rails... is it possible to get the ~42VDC to the ideal 34V without too much pain (and heat)?

Thanks !

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Old 25th February 2010, 12:06 AM   #5
DougL is offline DougL  United States
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I do not know if Canadian shipping is an issue, but this seller has good transformers and good service.

Antek - AN-8430

No affiliation except as a customer.

Scienta sine ars nihil est - Science without Art is nothing. (Implies the converse as well)
Mater tua criceta fuit, et pater tuo redoluit bacarum sambucus
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Old 25th February 2010, 12:16 AM   #6
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Antek does list shipping to Canada:

Antek - Prices

I'm guessing we get hit with duty when we receive it. I'm planning to order from there within the next week or so.
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Old 25th February 2010, 01:40 AM   #7
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Default Transformer

Check Partsconnexion in Burlington Ontario. I saw some on Canuck audio forums for sale as well
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Old 25th February 2010, 11:48 PM   #8
OliG is offline OliG  Canada
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Thanks for all the suggestions!

So far, Antek are by far the least expensives transformers, and they seem to carry every possible type. Do they have an ok quality? What can I expect from a transformer almost half price of a piltron?

Thanks !

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Old 26th February 2010, 01:57 PM   #9
qusp is offline qusp  Australia
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I can highly recommend the custom wound transformers from sumR, Richard is a great guy to deal with too, fantastic quality stuff. the only thing that stops me using him for every project is the shipping from canada of such heavy packages is insane!!. if I lived in canada try and stop me, I would be ordering them left right and center.

as it is for anything mission critical, I go to him. the fact you can specify pretty much anything is great. for my dac I got 3 fully encapsulated transformers in cans with 18AWG solid core pure copper leads. also being able to order with 240v primaries instead of having to wire them in series was cool, so much neater.

Last edited by qusp; 26th February 2010 at 02:00 PM.
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Old 27th February 2010, 10:19 PM   #10
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Default Transformers.

Guys, don't laugh, try Ebay. There are a ton of them on there.
Finding new ways for the extreme mis-application of high tech!
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