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A friend gave me a green laser and the power supply to go with it, said it did not work. I got it working but pulled the modulation plug out and now don't know which socket it plugs back into. Just don't want to plug into the wrong one. I can't find any info on this, so I am trying hear for...

I bought off dtr laser a 20mm copper module and a g8 lens for it. The 20mm copper one came with a lens that screwed into the copper. I had to turn the threaded part almost all the way in to get it to focus about 3 to 5 feet. Also had to remove the focus ring to do that. Seemed the threaded part...

Not stumbled across the answer to this. What is the advantage or disadvantage of say I have a box with diode and ttl input. The spec's say max 20khz. What is the advantage of say running at 1khz, 5khz, 10 or 20khz. Really got my interest, so thanks a bunch.

Just getting into this as a new hobby, ordered a diode and found a thing you put the diode in with a g2 lens. It was a piece of crap, could not screw together or unscrew, it was thin and and had a cheep chrome outer that just slid off. Only reason I ordered was it was all I could find. You all...

Was looking for the copper things to put the 5.6mm diode in, something with nice threads, none of the vendors hear seem to have any that size. I can find the junk ones. Someone have a tip. Thanks

Bought a m140 blue diode, got the copper case that it goes in and all is well. I set the buck converter to 4.2 volts with a limit of .5 amps. Looks so cool at night. Only ran 3 times for 5 to 6 seconds at a time cause the big heat sink had not arrived. My question is. How sensitive are these...

Hi all, recently retired from electronics repair. I know almost nothing about lasers except what I have read over the last few days. All the numbers are very confusing, is any chart available with description of what stuff means. Anyway, I bought a cheep blue laser diode it is <500mw m140 5.6 mm...