[sdiy] Switching power supply transformers

[harrybissell]

NO NO NO....

switching power supplies run at very high frequencies...
50/60Hz on one of those transformers is saturation / fire
for sure

TRY the switching supply.  Often they are NOT a problem
although they can be.  If you do not notice any weird effects
you will be fine.

NOTE that most switchers need a certain MINUMUM current which
you must always draw or they don't work correctly.  This is usually
somewhere arounf 20% of the rating but could be more, or less.
Make sure you use the minimum power, if only to light a boatload
of LEDs or something

H^) harry

Karl Ekdahl wrote:

> Hi list, today i found a 5v 2A powersupply, exactly
> what i needed. Unfortunley i didn't see that it was a
> switching supply until i got home and from this list
> i've learned that switching is NOT good for synth-DIY.
> Anyhow i was wondering if you think that i could
> salvage the transformer (it's really, really small)
> from the supply to generate 5v/2A ? The other thing i
> was thinking is that maybe if i'm driving only the
> logic part of the circuit with this, i could keep the
> supply as it is? Any thoughts would be highly
> appreciated!
>
> Karl