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It had been over 3 years since working on any lasers, but after reading about the seemingly extraordinary capabilities of these 445 diodes, I decided to build a basic unit. No bells and whistles, just a DX driver (which I tested for voltage and current first), a 445 mounted in Axiz module with...

Well, I didn't build it so bought it instead. It is a Thermoelectric based cloud chamber that doesn't use dry ice, just cold ice water for cooling the peltier. The dish is about 5" diameter and I filmed a small section when tracks started to form after about 20 minutes of cooling. The tracks...

Saw these oval shaped objects called "Zingz" at the drugstore the other day and decided to purchase a pack. Now I am an older fella, so I wasn't sure what they were all about until after opening the package and reading about all the tricks that can be done with the Zingz. Well, for a little...

We've been discussing all of the great circuits using our pulsed diodes, but I'm wondering if red diodes are available in the 150 mW CW range for decent prices? Jon

Found this nifty little circuit for providing adjustable voltage and current: voltage and current limited ps http://www.repairfaq.org/sam/sgldtst1.gif http://members.misty.com/don/sgldtst1.gif (Note: This is the mirror is above link off-line) What's nice is that it uses a pair of LM317's to...

Looking for ideas/ suggestions/ links for combining two greens for more power. I see that Nova and other firms offer beam splitters, but I don't see combiners. I'd like to take these two DX30's I just received and combine their output. Can this be done in DIY fashion, with prisms perhaps, or is...