Kermit, can u pleeeeeeeeeeease scale down the image to 800X600 . so tht everybody can see it without scrolling

 

I linked it direct from the hosting site. I didn't know it was that large. Really. I think my browser compressed it for my viewing window automatically, so I saw it as a smaller picture and not in its native size.

I will look around for a smaller one or upload a copy on my account.

 

Amen to that. Something like this...

Constant Voltage Source

Constant Current Source

Basic Power Supply

Most of these parts can be bought at Radio Shack. A LM317 is a 3 pin voltage regulator, cheap, available everywhere. A LM78XX (as in LM7805 (5V), LM7806 (6V), LM7812 (12V), etc) is also a cheap voltage regulator IC, some of which are available from Radio Shack.

Basic Bench Top Power Supplies