If you need just one, how about using a small transformer. Perhaps either
the primary or secondary of a wall-wart will be what you need. Ignore the
unused winding. And of course remove any rectifiers.

I just moved my office and haven't been able to locate my henry-meter or
else I'd already have checked a few wall-warts for value in order to back
up this suggestion.

Cheerful regards,

Bob

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics