On 6/15/2012 5:29 PM, Laurav wrote:
On Jun 15, 11:49 am, Bennett wrote:

You could use a Uninterruptible Power Supply (UPS). You'd need the kind
that is always regulating the output voltage (an online UPS), rather
than just turning on when power is lost or sagging badly (a standby UPS).

Would a UPS that outputs voltage exact to within 1% or so be very
expensive?
Also, can one get a UPS with adjustable output voltage?
Laura

They are pretty expensive - $350 and up. Output voltage usually not
adjustable; the built in rheostat that you've got would adjust the voltage.

BTW, what is an Air Turbine; what does it do?