I setup my rkcstr v3 with 2 cr123a batteries. Hook it up to the dummy load (4 diodes and 1ohm 1W resistor) and power it on. For some reason, I'm getting 4.4v across the 1ohm resistor. Turning the pot doesn't change the reading at all. Any clue what I may have done wrong or where to look?
Edit...
Just getting into my laser hobby. Been a flashlight geek for years, and I guess lasers are the natural progression after a couple grand in flashlights.
Don't have one yet, but am purchasing a red burner from andy_con. Looking to get a visible green from Optotronics after the holidays.
Just...
Just picked up my first burning red made by andy_con. Excited to get it.
So, this decreases my need for a super powerful green. I'm going to grab something <100mw from Optotronics. I was planning on the 75mw, but I wonder if I need that kind of power now that I have my red. I just want...