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I consider it exceedingly dangerous just like I do any other high power laser, because frankly i'm kind of attached to my eyeballs and would like them to remain in their current operating condition. I kind of get the feeling though that dressur is more looking for a step by step how to guide...

Not to mention the fact that it's exceedingly dangerous. There is going to be a whole lot of invisible IR bouncing around in the cavity (and likely stray output from the pump as well) and also on the output if an IR filter isn't used. Also his argon cavity is of no use whatsoever. Not only is...

I can send it to you tomorrow if no one else has by then. But not right now. it's 2am. i'm going to bed.

No, not selling the spectrometer. And you're about a year late on all the gas lasers other than a few small HeNe tubes.. I already got rid of all the argon ion stuff. Also, Found the before and after pic I took when I originally machined all these hosts about a year ago.

Most of my set in this thread started life as newwish pens.. You can't really knock them as a cheap source of diodes and drivers for low power builds.

It's funny. The one that I consider the most special is one thats 'common' now apparently. th 512nm. It was diode #3 of the direct greens that were available to the hobbyist community. RHD and Aryntha had the first two.. I sat on this diode forever because frankly.. I was scared of doing the...

Both the 401 and 414 are running at 100mA.. the 401 is 55mW, the 413 is 52mW And yes, 401 and 414 are visually different.. Both normally and in the fluorescence they cause.. the 401 has a significantly greater effect on UV reactive materials than the 414 does. And yes, I know 414nm is high...

The 401 and 414 are nothing special.. Step 1) buy a bunch of 405nm diodes. Step 2) buy a spectrometer Step 3) Test all of said 405nm diodes and keep the highest and lowest you find. As far as yellow. I MIGHT could cram a 593.5nm module in one of these hosts.. MAYBE.. I managed it with 532...

This is a set I've been collecting parts for for a while, and finally built while I was sorting/cleaning/getting rid of stuff in preparation for moving. The hosts are stainless steel trustfire xp-e f23's that I turned down in the lathe. They run off of 1x 10440, except for the 532nm, which...

Actually.. that's a good idea. Never thought about comparing vF.. I only looked at current draw to power output before, which.. well, the phr and the 12x were pretty identical in those regards. Luckily I still have the PIV curves I took when I did a group buy on the sf-bw512l's a few years...

I'm pretty sure it's either a PHR or BW512L because in that particular timeframe, those were the only two types of 405nm diodes I had any of. I acquired a bunch of cheap ebay 405nm pens later on, but that came after my original query. And I never claimed the 415nm was unusual, only that it was...

Necroing this almost two year old thread because after recently having to dig out all my laser stuff to fix a build for someone, it got me actually interested in building lasers again.. So I starting going through all the stuff I've accumulated over the years and seeing what I could actually...

remember when reading low ohms, the wires of your leads have resistance too.. touch them together and see what it reads, then subtract that from what it reads the resistor as.

they're rare because not many people want them so most just get scrapped. As anything bshanahan doesn't get in the morning will probably end up by the end of the day tomorrow. I want my living room floor back.

No, these aren't tunable lab lasers, which is primarily the only things that have tuning prisms. The only difference between them is the coatings on the optics.. Which are external and replaceable by the way.. I think there are a few sets of ML optics on ebay for 60x's at the moment I think...

Heh. You've obviously never dealt with 60x heads before. These heads have likely been rebuilt/retubed no telling how many times in their lifetimes of getting moving from xerox copier to xerox copier with rebuilds inbetween. Any original markings on the housing are likely not correct anymore...

Make an offer. And also, tell me how to tell which one that is without dismantling anything :P You have to remember, these things have been shuffled around for a good decade. I haven't known which head was which for years.

Update 2. Found the keys to the SP 263 psu.

Could be worse.. The only people interested in the SGI stuff i'm trying to get rid of as well are all in europe. heh

Re: Build: Tri-Diode laser Est. 5.6W I see a problem.. You don't have enough arduinos. lol :na: