[sdiy] Unmarked transformers

[Ken Stone]

Simple way to tell if a transformer is mains rated-
The primary and secondary will be on different bobbins, sometimes one above
the other, some times one inside the other. Not all mains transformers do
this, but if you are smart, you won't use the ones that use the common bobbin.

Ken

>Hi, i've got a bunch of unmarked transformers that i
>have used doing 220v -> 22v. I don't have a clue if
>they're actually designed for 220v input so maybe,
>there's a risk of fire or something equally
>unpleasant. Question; how do i know how much a
>transformer can take? Also, since i'm wondering what
>would happend if i plugged this into a 110v outlet, it
>just so happends i need to build a +-9v adaptor for
>both 220v and 110v input.
>
>Karl
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
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