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Introducing my high current test load. It features 5x 5A continuous current SMD diodes and a 1 Ohm 1% 25W SMD resistor. These diodes are so beefy they are rated for 15Amps peak! The diodes have plenty of thermal mass to dissipate heat via its SMD copper pads(bottom and top layer). It has been...

I just purchased this thermopile from ebay: Gentec Laser Sensor Head Thermopile Model # PS-310WB - eBay (item 330447675278 end time Mar-14-11 12:02:45 PDT) Does anyone have any experience with this type of unit? I couldn't find any real documentation on it other than product specs. I need to...

The pieces [about $8 at Home Depot]: Dry Fit: I plan on using the same ultra flat back I used in the $50 LPM project:

I got the wrong size part to make a 3A version of my driver. These are about the same size as LM317's but with bent legs for use on SMD pads. Part#: LM1085D2T by ST Micro Package: D2PAK Datasheet: www.st.com/stonline/books/pdf/docs/6738.pdf 0 available.

=============================================== 1.8A Drivers are LD1085 based and need 2x IMR/LowR Cells =============================================== =============================================== All others are LM1117 based =============================================== >>>>GO HERE TO...

This was on the local news tonight. It was stolen out of a rail road maintenance truck ... the thieves probably didn't know what they had. It does look like a beast though. Missing: Laser Cannon; If Found, Call FBI | NBC Dallas-Fort Worth

Time to purge some of my extra stuff! =============================================== 2x "Torch light" IMR-26650 cells from LED-DNA $30 shipped. Only 1 pair available. ================================================ ================================================ PCBs below are $5 each ...

I put this together a couple of months ago and has quickly become my favorite star party laser due to the razor sharp low divergence beam and night vision preservation. Estimated output is 200mW. The host does become warm after a few minutes, so its doing its job very well. LCC from GGW sled...

The pieces: 10x10mm TEC mounted on a TO220 heatsink and connected to a LM358 Amp circuit per this thread: DIY Thermal LPM for under $50 Aduino Board: DFRobot DFRduino USB Microcontroller (ATMega168) - RobotShop DFRobot LCD/Keypad Shield: DFRobot LCD Keypad Shield for Arduino - RobotShop...

6xBR on left, LCC on Right, illustrating the difference in length. GGW ... BR vs LCC by DFW_Nikonite, on Flickr

So I've been playing with Eagle PCB and reading TI ap notes. So far I have come up with the following design. Any suggestions are welcome (Im a software guy and know just enough hardware to get myself in trouble:D). Features: +Battery Pad on bottom layer Through holes for spring or wires The...

Lit with Fenix PD30 torch.

I decided to house my 445 in Ehgemus' 18650 Blu-Ray host. It has a diode pocket and focus adapter, both threaded for Aixiz glass lens. It is a stunning work of art, my pics do not do it justice. Heatsink back, showing 445 diode pressed into the pocket: Heatsink side and front: Focus...