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does it matter what a cap is rated to? say a 200uF cap at 500v? or a 200uF at 50v whats the difference if you were to put the 50v on the 500v, or vice versa? How is capacitance related to voltage?

yeah, youd have to wire a transistor and a photocell somehow so that when there is no light (laser becomes blocked) a current is sent to  the alarm to trip it..... Something like this might work: Its a schem for a LED to turn on when the lights go off, but its the same basic principle if you...

So possible people (people who live close enough) ;D Me LarryQ Pseudo jayhawker zarniwoop haha, if we get enough people in the area we can figure out a place we can meet!! :D

Re: Midwest USA Meet =P come on! I want to have a group conglomeration of Mid-USA peeps. There have to be some around here, hiding in the woodwork.

Its kinda old, But is is awesome. ;D

Then I was wrong. :) haha, I wish I could afford a blue... :( Maybe I'll make a bluray or summat.

basing my knowledge on the assupmtion that red and blue have about the same visibility, it'd be about 150mw-200mw to see a blue beam in the dark. Wrong? :-?

That thing looks awesome! :o Je l'aime... Je l'aime et je le veux!

WHY!??!!  :o

me want... What would that beam lookm like shooting into the night? :o

Re: 5w Green laser show. Any value? (now with phot haha, energy bill? ::)

Re: profile mod needs to be user friendly--its not you have to upload the picture... go to www.imageshack.us upload the picture you want use that link

OK, here's johnny. If I was to build a DIY red, using either the GB diode, or one salvaged from a dvd burner The point is to have say 4v of battery power, how many ma should the driver be pushing out? I can build one, but schematics confuse me. So how many ma and how many volts should the...

haha. maybe 1 in 500 ;)

Awesome! How much are those bad-boys? Also, I have a question about a circuit. If I have 2 or 3 normal 1.5v batts and I wire then directly to a battery with a cap and some resistors of predetermined value, would it be safe? Also, can I use any size cap? or does it have to be a certain volt...

Where can a brotha get a mini dorcy? Target? Online? There's very little about these things on this site as to where to get them. :-?

Thats coolio... I think I'll do that to mine whenever I make it. :D

Second the above post. ;D

it might or might not have an IR filter, and therefor the 50mw might only be 10mw of green and 40mw of IR. Most people that get DX lasers are satisfied, they're pretty cheaply made from what I hear, but they do what they say, most of the time. Hopefully someone that has purchased a laser from...

I actually have it taped to the top of 2 D-cell batts. so 3v works too. ;)