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Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! ok, I just tried out my 18650gr pack, it is 8 x 18650gr cells in series, I dont know if these are in sad shape, or if this is typical of these cells, but with the pack at 31v, when I fire the system up, it draws 5 amps, (300ma on standby) and...

Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! OOOPS! I remember you had said that a while back, sorry bout that, all I was thinking about is the mfj not having any power behind it... the second of my l.t. battery's is no good, the cells all had .001 volts in them! :( Now i'm considering...

Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! the mfj antenna analyzer uses less than 10 mw doesn't it? :-? it would never be enough to ionize the gas, try a regular swr meter inline between the amp and the laser tube. What frequency is it at 50 ohms?

Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! OOOOH! yours looks NICE! :D I don't think my box looks as good, I ended up using what I could find, laminated wood cabinet parts and acrylic! It still looks pretty good, even though i'm not done with it yet.

Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! ya, by the time you get 5 of them, it'll be pretty large! :o 24 nimh d-cells would be smaller and more ah. So much for making it small. Well, the cells have gotten up to 3.85v per cell, and the current has slightly dropped by 10ma, I hope these...

Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! Yep, 2p4s... they're rated 14.8 per pack.... At this rate, it will be charged in 18hours! lol :D I thought about 5 x 6v gell cells, too big. bulky! but if these 18650's arent good, thats the next choice.

Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! Well, I tore apart the 2 laptop battery's, they contain sony 18650gr cells! cool! 8 in each one, they are kinda low, I don't know how safe recharging these will be, they are at 2.5 and 2.4 volts per cell. The packs test meter didn't show any...

Re: GB ROUND 2 OPEN for 10W RF EXCITED CO2 LASERS! "Perhaps some ferrite "prayer blocks" are needed here." ;D ;D ;D I'm having the same kind of thing happen here, a friend said I should try using a cmos 4001 nor gate chip instead of the 555. I haven't tried it yet though... gotta find a...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! A friend gave me 2 14v 4000mah laptop battery's, they should work well. :D

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! :D amazing! So almost 30% increase at 14ft! This is much better than I had expected. Just think what a 6x beam expander would do for it!

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! gees! by the time you get done, its gonna look like a ghost buster's proton pack! [smiley=grin.gif]

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! oooh, don't forget the bucket full of water! feel free to make some video if you can. Id love to see a 20ft wood burn! 8-)

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! WOW! :o I thought sure you would see degradation at 7ft! thats awesome!

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! ;D :D lol, you would choose popcorn! I finaly found that movie. (Real Genius, for those that aren't familiar with the popcorn.)

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! @4ft, did you notice any spreading? :-?

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! 2 feet, does that count? :-?

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! well, Mike, Chris, what do you guys think about these ideas? :-?

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! These lasers have turned out much better than I had anticipated, this is really great fun! Getting to build this one will be the most fun I've had yet building a laser.

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! lol! The c.b.r's are gonna love us! ;D Not to mention the old lady next door with rabbit ears on her t.v. [smiley=laugh.gif] COOL! I bet you can use a CB/10m swr meter on it! Maybe?! :o Now this is really getting interesting! You could build in...

Re: GB LIVE & OPEN for Small RF 5-10W CO2 LASERS! Cool NS! Thats 3 of us so far, I bet there are more here as well. ::) I used to have one of those little hand held led readout ones, but got rid of it a long time ago.