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I have found that I need the following parts for a test/dummy load: 4 1N400X diodes and a 1 Ohm resistor Then I have to find those 4 diodes first. I will go look for it.

Thank you very much for your reply. I do have an adaptor with more mA output, 600 for example. But I don't know what the output mA will be then. That depends on the pot right? So if I put 600 mA directly on the driver, what will be the best value for the pot then? (Again, sorry for my low level...

Hello, Recently I bought this laser kit on Ebay: 300mW+ 650nm Red High Power burn Laser Diode Module Kit - eBay (item 280393602910 end time Sep-11-09 21:27:47 PDT) It came well shipped, all parts were in the package. Now I have soldered everything on the circuit-board, and now I am trying to...

Hello, First of all, I am new here. I have read a lot on this forum, and want to build lasers myself. Currently I have a red 200mW laser pointer pen. This pen has a focus thingy on front of it so I can turn this around to change the focus distance. Can I just switch the red with a BR laser...