> I'm working on a project where I need an power supply adjustable over the
> range of < 15Vdc through 100Vdc at 300mA max.  I've done tons of
> adjustable supplies in the past: good old LM723 linear regulator, adjusta=
ble
> 3-terminal regulators, single-chip switch-mode supplies (Nat Semi Simple
> Switcher series).  But nothing with this high a voltage.  Input supply is=
 120Vac
> nominal.
>=20
....
> The total projected usage over this project's lifetime is perhaps a few d=
ozen
> units.
>=20
> I don't really care at this point whether I build something suitable or
> purchase.
>=20
> I'm looking for suggestions before I go blindly down the path that looks =
the
> easiest at this point in time.

I would suggest you look at the Keithley Sourcemeter range. I know there is=
 at least one model that does high voltage, I think it gets to 100V, but no=
t sure if it does the 300mA. I know the low voltage versions go to 1A.



--=20
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