I just finished mounting the mother of all red diodes. It is a custom-manufactured 635nm laser diode with an output power of perhaps 10 watts or more. Its lasing threshold is a whopping 4.5A, yet my power supply is only capable of 9. I'm sure it could handle at least 15. :-)
I recently got my hands on quite a large red laser diode. I am not sure how powerful it is, /several watts at the very least/, but, the threshold current is 4.5A, and my power supply can only do 5 :-)
>>Photo of diode<<
Nonetheless, I have noticed a very strange characteristic with...
Has anyone by chance, seen this model thermopile? If so, have you any idea who made it? it is very nondescript.
Two machine threads are drilled into the bottom of this aluminum block. (not pictured).
Imgur: The most awesome images on the Internet
Edit: Seems to be made by ophir...
Scare story; do what you can to prevent my mistakes.
It took 5 years' worth of laser experiments, but I finally managed to do myself in. Not with a 100W yag, or a 50W laserscope, but rather, with a divergent 445 diode. Here's what not to repeat:
In one of our research labs' basements there is...
Hi all, it's gren's time to liquidate again!
30mA Neon sign transformers, $35 ea. 4kV, 5kV, 6kV, 7.5kV and 9kV, pick and choose. Two fit in a $16 flat rate box, and they're good up to 150VAC. ==== http://i.imgur.com/sfBkIoi.jpg
90mA 9kV NSTs - $60. They're bigger and heavier, but more...
Hi Everyone, Longtime no see.
Anyway, I have an ultimaker that I no longer use anymore. Anyone want her? I've only used it for maybe 10 prints, at most.
Photo Album - Imgur
MSRP is $1566, and it comes with the ulticontroller ($104) and the netfabb software ($196) [all according to google...
I'm looking for someone who works in the telecom business; sets up PBX's, VoIP phones, knows what a T1/E1 line and a DS0 channel is... etc.
If you happen to work in the telecom business, or know someone who does please let me know!
For sale: 996mW S3 krypton with lasersaber attachment. New batteries, charger, polyester case & lasershades. MSRP for the lot is $1200.
First $925 takes it! $275 off retail for this laser kit is more than a fair deal.
Paypal or Google. Google much preferred. This laser comes with...
Yes, a krypton, big fiasco blah blah. Here's a No Bullshit version of a krypton sale.
Up for sale is my essentially brand new >750mW S3 Krypton laser. Overall she averages about that; 750mW. For lack of a better way to say it, it's essentially a handheld sunbeam.
Provided the sun was green...
Still have more stuff I'd rather not take into a tiny dorm...
Tesla Coil Capacitors: 50kV, teflon, pulse rated, 15nF - $70
Box of 30kV 750pf caps: $100. Make a nice CW multiplier or something.
X-Ray tubes, new. From L to R: $110, $90, $100.
AC flyback transformers. Various...
Well, I bought a very expensive ND:YAG deck which should give me 1000mJ pulses at 25Hz. This means about 8 watts of green if I align a few crystals correctly...
This also means that I'm no longer going to need my 1.5W labby!
150 yard beamshot:
Beam dot: TEM 11.
I've upgraded my scope; so unfortunately I must say goodbye to this fellow:
It's a calibrated TEK TDS210 digital storage oscilloscope, and it works great. Has all the fun measurement and trigger features, plus what's down below:
Bandwidth: 60 MHz
Sample Rate: 1 GS/sec
I'm looking for a mirror galvanometer, one which would be suitable for directing a green beam to a new direction on every beat. Yeah I know, going to have to do a lot of EE for that but it's not THAT terrible.
Willing to trade tritium lamps for one!