Recent content by Tim71

Thanks for the responses. 18650 & 18500 are a tad longer than was I was hoping for. I think I found one that might work - 18350 is short enough, and the 18 mm diameter is good, but it is 3.7 volt, 1500 mAh. Will one 18350 battery be sufficient enough to power a flashlight that is meant to use 3...

I recently bought a 12 LED flashlight that takes 3 AAA batteries. You install the batteries by placing them into a cylindrical battery case, and slide that into the flashlight casing. What I would like to do is use one short battery (about 34mm or less in length, and about 24mm or less in...

"As a group, LPF tends to be rather skeptical and very safety paranoid." Sounds like quite a group! Personally, I'm allergic to group mentalities. "So when someone comes asking to borrow a laser... it just doesn't pass the smell test... not without extra details. " "So when someone comes...

I didn't know my question was going to illicit such responses! I am planning on demonstrating how sound can travel distances with a laser beam as its carrier. I am going to use a red 5mw laser for that part. I was hoping to make my intro stand out by using a burning laser to light a piece of...

I'd be surprised if I got any takers, but I thought I'd ask anyways. Here it goes: I am taking a speech class this semester, and would like to use a burning 405nm laser for my upcoming demonstration speech. I was going to use my PHR-803T laser, but it died on me recently. So my question is...

I'm selling my PHR-803T laser. Puts out somewhere around 100mw. Burns matches, balloons etc. The PHR-803T diode is in a Aixiz module with glass lens and Rkcstr driver. I have it on a 9 volt battery, and works great. I have turned it on very little, and each time has been for 20 seconds or less...

Noob my arse! The guy has had 192 transactions on ebay! Oh well, I hope everything turns out alright. Tim

I have a 405nm laser that is ~ 100mw. The PHR-803T diode is in a Aixiz module with glass lens and Rkcstr driver. I have it on a 9 volt battery, and works great. I have turned it on very little, and each time has been for 20 seconds or less, so there should be a lot of life left in her. I have it...

Would anything happen to the beam of a 150mw 405nm laser if it is pointed into the hole of a doughnut-shaped coil that is producing a magnetic field of about 900 Gauss? Would the beam be affected, and if so, how? Thanks in advance, Tim

Thanks everyone for the comments/suggestions. I also have a red 5mw that I could use while the green cools down. I have only used these for very short duty cycles (10-45 seconds), and didn't know for how long they could be pushed. The kids will be at least 15 feet away from the mirror, the...

Hi all, This Halloween, I would like to create a vortex/tunnel in the garage for the kids to see. I would be using a 5mw pen from eBay that I just bought. A fog machine would be used to help with the effect. My questions are: 1. Can the 5mw green eBay pens run continuously for 1.5 hours? I'm...

Thanks for the heads up! :)

Hey Alan, If 200-300 mw is what you're looking for, then the PHR-803T isn't a good choice. That diode would die too soon at that power range. If I were you, I'd go with either the GGW-H20L for 200-250 mw, and if you need to go higher, then a 8x diode. Just my 2 cents. :)

Hopefully, Kendall will get his site fixed and up and running soon. I've bought from him a couple times within the past few months, and I've got nothing but respect for the guy.:)

If I were in your shoes, I would go with Dr. Lava's FlexMod. You can find it here: http://hacylon.case.edu/ebay/laser_diode/FlexMod01.php. Hope this helps