[sdiy] Transformer question

[Simon Brouwer]

Hi Mykolas,

Get the 2x18V. With the 2x15V you would find that, under load, the input
voltage to the regulators becomes too low. You can leave the extra
secondaries unconnected without any problem.

It is quite a good price shown on that web page!

Best
Simon

Mykolas schreef:
> Hi guys,
>
> I'm about to build ±15V psu using LM317/LM337, but there is question
> about transformer. In my local shops I can get 2x15V 1A rated
> transformer, but not bigger :( there is option 2x18V 2x1.1A (but it
> has couple more secondaries), link:
> http://www.evita.lt/en/det-1562-transformer-tp60-9-2x18v-2x1.1a-10.6v-0.6a-5v-0.5a.html
>
> Can I use 2x15V 1A transformer or do go with 2x18V and leave secondaries
> free.
>
> Many thanks.
>
> --
>
> Mykolas
> +370 67626261
> www.analogas.uzrasai.lt
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> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
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>
>


-- 
Vriendelijke groet,

Simon Brouwer
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