My first laser was from Radio Shack. It was I bought it in 1992!:wtf: Man, I getting old! I think it was 89$ on sale! Wavelength is 670nm, not sure though? I still have it and it still works.It takes two 1/2 size AAA 1.5V batteries.
NO BODY had a laser pointer back then, it was a lot of fun messing with people. I was a Freshman at the University of Maryland living in dorms. My room was on the tenth floor. I remember myself and a few buddies would point it out my window at the lawn below where people would be studying outside. We had hours of laughs screwing with people down there, I would point it at their books and they would go nuts trying to figure out what it was. It was especially fun at night since the laser was low power with no beam, no one could see where it was coming from. Yes, immature, I know but back then there weren't as many sources of entertainment.
The laser was probably less than 5mw but had low divergence so the dot would stay small at a distance. I would never do that nowadays since Im slightly more mature plus everybody knows what a laser pointer is, so it wouldn't have the same effect, and I would most likely be arrested for harassment, but remember the was 1992 and things were slightly different back then.
The thing I can believe is that the original batteries still work, that's freaking crazy that they haven't leaked or at least died in 23yrs!