SergeModular

> Does anyone know of a nice US -> UK (or european) power
> transformer that also outputs reliable 60Hz power,

A transformer will convert a voltage, but not a frequency.
Frequency converters are available, but generally expensive
industrial devices.

> or do you think i'm going to have to modify my dad's power
> modules to better handle 50Hz power?

50Hz vs 60Hz is not usually a big problem, although 60Hz
mains transformers work less efficiently at 50Hz. Before
you conclude it's a frequency problem, check that your
step down transformer is big enough and is supplying
approximately 120v, not being loaded down - which
would lead to hum.


Steve