Quote Originally Posted by Pere Casals View Post
Just let me add some thoughts for the 8x10 enlarging I'm also building.

I'm also a PCB designer but for this project I'm to rely in comodity components.

I will place amp meters in each color channel to be sure that the particular channel power can be known at any time from electrical parameters:

Attachment 173184

$1.48 each: https://www.ebay.com/itm/DC-0-200V-1...YpGl7eAgMwPm1A