Make DARN sure that the polarity on the 12V wall wart you are using
is not reversed if it outputs a DC voltage, or that you are not using
a wart that provides ACV instead of DCV.
Moe
--- In motm@yahoogroups.com, "edibennardo" <endiendi@t...> wrote:
> A little help through your precious opinions:
> In the manuals of all MF models it is indicated that the units can
be
> powered up to 15V so I often use 12V instead of 9V i.e. well the
only
> problem is with the MF104, at 9V it works fine, if I select 12V the
> dry signal is still fine but the wet is distorted and a consistent
> hum (rather loud) is added to the sound. When it first happened I
> wrote to moogmusic, I was using only one type of wallwort at that
> time with voltage selectable and 1A of current, they said it is
> strange, it seems that F104 doesn't like 1A and 12V, now I tried
with
> all kinds of power supplies and I can say that the problem is still
> there at 12V, yet I can say that at 9V there's no problem but I can
> not say that the sound of the unit is so fantastic so maybe there's
> something wrong and defects are justs enhanced at 12V? Any thoughts?
> Many thanks
> Enrico (Italy)