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It's a Velleman Instruments HPS-10 Personal Scope. Very inexpensive (around 100 USD about two years ago), but reasonable capabilities...I bought it in order to have something to check phasing in my H-bridge and Half Bridge MOSFET drivers, and also to determine the resonant frequency of a coil...

Yeah, or even a simple 1 mile diameter loop antenna...If one was close to a cell tower, try a 900Mhz or 1.3Ghz Yagi or better yet a nice dish with a feed point optimized for the cell carrier's frequency to take advantage of the quasi-optical properties RF tends to take on at microwave...

Yeah, I realized you meant "free" as in $$$ cash.  I revised my post so as to make sure you didn't think it was an insult.   -Brett I just redid (roughly) that scope demonstration I was talking about. It looked like there was a lot of RF noise present in my lab today, which isn't surprising. I...

The point about the energy gathered and reused from collecting wide band RF from various emissions in the air often ignores the fact that more energy was dissipated (through losses in the form of heat, etc) creating these radio waves via radio, cell towers, etc....than you can ever collect.  The...

That's amazing!

You'd be surprised (who might be the bigger kid)!! I still ride a skateboard, even though my knees and ankle joints are falling apart. Anyway, the graphing function is great!

Oh, no...I didn't know you could graph it within the program! That's great. I was going to just open up Excel and Import it, but this is even more convenient. Thanks...I literally just tried out the datalogging a few minutes before I wrote the review. Yeah, I figured you already knew I was...

I have several difficult DPSS projects currently in the works. This instrument with be the centerpiece from which my progress will (hopefully) radiate. Excellent A+++ 10+ out of 10. thanks Jerry. -Brett

Here's a pic of the comma delimited text file dumped by a datalog of my 15mw Aixiz labby running for around 4.4 minutes. You can see that as the software plots time in seconds (very useful) you can see the change in power along with the change in time...tonight my laser seemed to stabilize at...

Here is a photo of the screen, showing the main window of the Laserbee power meter interface software. You can see here that you now have current, average, and max display simultaneously visible, plus the option to continuously log to a text file.

I've been using my laserbee for a couple of weeks now.  It was the most anticipated and also the most exciting out of all the Christmas presents I bought for myself this year...and I can tell you right now, I bought a lot of laser equipment during the later half of last month and also this month...

Golden Dragon, Hey, that's great to see...I just restored a damaged green laser of mine not too long ago. Congrats Jayrob on a great job! -Brett

SMIDSY, I really like the look of that enclosure. Good work!!! -Brett

It sounds like you've read through this already: http://www.repairfaq.org/sam/lasercds.htm#cdssups ...if you read the whole thing several times (all the way to the end) you'll see that there are several examples of case studies of people restoring damaged lasers and dealing with issues just...

You should be able to find spec sheets for IR pump diodes at Roithner laser, and also the ebay seller snoctony has specs for the 808nm diodes he sells as well. Sam's Laserfaq is where I developed my framework of understanding about DPSS. -Brett

Here's all the insight you could ask for as a beginner, and a bowl of grits!! http://www.repairfaq.org/sam/lasercds.htm#cdssups ...if you manage to build (or buy) a green DPSS, I've found that burning starts around 30-50mw with a well collimated beam (1 - 1.5mm).  The lower end of the...

Great! I'm glad you like the idea. I see that Meredith Instruments has a supply the sell regularly on ebay that does up to 1.5A, but it costs 50 USD. I've thought about buying that and reverse engineering it, but once I've paid that much, I expect to get a module and crystals along with it...

True.  Jnrpop, don't hesitate to look up the datasheet on parts like this when you have thermal concerns.  I had a good habit of doing that when I was building my own drivers for solid state tesla coils, but am still getting acquainted with current regulated supplies.   You know, what we ought...

Your results are concurrent with what I have found as well.  The first part to overheat in this Snoctony 50mw system is the MOSFET.  You could outfit it with a taller (preferably copper) heatsink and some thermal paste and you ought to be able to get away with longer runs with only passive...

That's cool that you have one though. That's probably the best route for me. Just might have to wait a few months or longer. -Brett