Date: Mon, 06 May 2002 14:24:48 -0400

Author: Gerald Zani

Subject: Power Supply



I would like to buy a 25 volt 25 amp variable DC power supply.
It should simply consist of an on-off switch, a high current variac,
a high current bridge, and a filter capacitor.

Does anyone know where to get a variable DC supply this simple?

Most power supplies have lower power and a lot more regulation.
I don't mind having the ripple on the DC. I want 625 Watts power and low
Mcmaster-Carr has manual battery chargers that are similar to this.
But they do not have a variac so they're not variable, and they don't have
a cap so they produce pulsating DC.

Does anyone know where to get one like I described?

Can't wait for Boise!

Gerald Zani e-mail:
Manager of Demonstrations phone: (401) 863-3964
Department of Physics FAX: (401) 863-2024
Brown University Providence, RI 02912-1843 USA


Do a little more of that work which you have confessed to be good,
Which you feel that society and your most Just Judge rightly demand of you.
Cultivate the tree which you have found to bear fruit in your soil.
If you have any experiments you would like to try, try them.
Now's your chance.
Henry David Thoreau, Journal entry, 1850.