Recent content by Markus Unread

This from the blokes at Hackerbot Labs. Liquid-cooled array of 445nm awesomeness. Hackerbot Labs » Photonic Beam: Results Laser Yurt!!! Yes. Really. View from above the fog, a few miles away Be sure to look at the photos of the hardware used for this project, in the photo stream.

As long as all three parts are at the LD, it won't hurt to use the R/C/TVS combo.

You want ESD protection components located at the laser diode because extra lead length increases lead inductance/resistance. Put the TVS, etc at the laser diode no matter how you are mounting it.

That's close enough, then.

The Digi-Key - 568-4044-1-ND (Manufacturer - PESD3V3S1UB would be fine for a 445 diode. If you were talking about red or IR laser diodes, I would go with a part that has a lower Vbr. Put your ESD suppression at the laser diode leads, not on the power supply board. A bad connection to a...

Yes. Dragon's Lair and Space Ace. The player used special laser discs where one side of the disc was made of aluminum to stand the high heat.

100A discharge. That's a safety issue in itself.

Looking to check a few lasers on a calibrated Laser Power Meter anywhere near the North Olympic Peninsula (Port Townsend) area. Will bring lasers to you. Thanks!

Great. Good luck with that! I'd love to be able to figure out who makes what in China. Everybody sells stuff from a handful of manufacturers but it's impossible to know who. Without that info, it's like buying an unmarked black box and getting a surprise (good or bad) when you open it.

Considering that HK Post took 17 days to get mine from HK to the USA, unless it was supposed to ship from NY, a week is not likely.

Actually, the back surface of the diode, along with the copper spreader, are compressed flat against the heatsink face - with thermal paste.

I got word back from VirtualVillage - "You may found we are having a few listings' price very high, however, please don't worry, we are plusing $100 for the out-of-stock items recently so we can still maintain our listing without pulling back and once we have the item available again, we will...

"diode' negative leg and the power source negative?" <<<--- That one. "Ten amps seems quite alot for those fllmsy wires" The meter I used is 0-2A, not 10. The 10+ meters, I believe, uses an external shunt.

True! That's why it is called "Dorky Overkill" :)

Holy Crap! $100 is way off. They should be ~10-15 USD. I just sent them a message to see if they will fix their listing! There are four wires on the ammeter - Red- (+) 5-15VDC Meter supply Black- (-) Meter supply Green- Connect to load device (laser) (-) Blue- Connect to power supply output...