DIYbio:Notebook/Open Gel Box 2.0/Power Supply

What we need: clean, stable, variable DC at 20V-100V, adjustable (possibly up to 600V). Consider an AT/ATX supply (these handle keeping constant voltage while accommodating a variable load) with a step-up transformer?

Building a Power Supply http://www.eleinmec.com/article.asp?16

How to Add Variable Voltage to Your ATX Based Bench Power Supply http://www.wikihow.com/Add-Variable-Voltage-to-Your-ATX-Based-Bench-Power-Supply

Converting a computer ATX power supply to a really useful lab power supply http://www.instructables.com/id/Converting-a-computer-ATX-power-supply-to-a-really/

http://www.instructables.com/id/Convert-an-ATX-Power-Supply-Into-a-Regular-DC-Powe/