Little late in the game for me for that. I like to think I know what I'm doing, usually.

 

OK, I was designing in my head, getting ready to start drilling the box, when it occurred to me that I might put my ideas on paper (or electrons). I can still do brain farts, but they occur less often that way.

The fan is optional, but I put the switch on the drill pattern.

The second S3 is actually S4.

Strange how this project has taken on a life of its own.

 

Hello,

Keep in mind that S2 must be able to carry the full 10 Amps.
This is likely larger as the given miniature toggle switch.

Bertus

 

A good point, one which I had over looked. Given the odds of going that high current is pretty small, I may not worry about it, that or derate the fuse.

 

U can use 5V Relays rated at 10 Amps

 

Other than the built in panel meter, the idea is maximum simplicity. This is going in a small box as I can manage. If/when I finish it I'll put it in the Completed Projects forum.

Minor redo of schematic...

 

OK, slowly but surely circling in on the final design. Got the box 2/3 drilled and parts mounted, working on the heat sink section at the moment.

 

Soldering commences, this is probably my final schematic.

 

This project is finished, however I will probably come up with a simple version without the bells and whistles.

Project : Electronic Load