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On a practical end, are there products that offer transparent bodies? Otherwise how are you going to showcase them? Only when they are docked on the charger? Also, its wise to have the chemistry/working voltage/capacity listed on the label. 18650 is by definition an ANSI standard for...

I can't think of a way beyond a transistor circuit to clamp the motor though, you can cut power to it but the remaining magnetism generated by the stator would still cause the motor to move, possibly past their limits even with limit switches in place. Theres inertia to deal with too. How big...

Wow, someone did their homework on noise filters... For me, I would save the mosfets, inductors, and large caps, optoisolators, and zeners... like that TL431 down there. I'd personally ignore the LM317 simply because there isn't many places I can use it. Plenty of switch mode alternatives...

Hello there, could be just my computer but McAfee sounded alarm when I clicked that link, it told me its a malicious webpage and recommend me not to proceed further. did anyone have that problem?

Re: Offroad's Laserbtb sales thread! quite bummed about laserbtb closing. edit: nevermind. :)

I went to laserbtb's webpage today and now it reads: Thanks and Goodbye! From MAY1,2008 to MAR24,2017,we provided many laser pointers, we try to be better,but we know we cannot make everyone satisfied. Now we stop this business,thanks to all kind buyers in the past years! So I'm guessing...

LM350 has the same pin out as LM317, but has an upper [not lower] current rating of 3A as opposed to 1.5A as the LM317. In fact the minimum load current of an LM350 is the same as the LM317, about 10mA. Wire the LM350 the same way you would wire an LM317 for constant current. The reference...

If you absolutely must use TO-220, whats stopping you from using LM350 instead? Same pin out and reference as the LM317, Good for 3A

the latter is more difficult because it will need a voltage equalizer to balance out the cells. The easiest way I can think of is to place a 4.2V clamp regulator across each cell. If it was me, I would probably implement something like a bq29200 or bq29209 and skip the guesswork

Lithium thionyl chloride have systemically been used as memory protection applications, to which even 100mA is considered "high drain." Typically they run around the uA range, many of these batteries are permanently soldered into the devices they were meant to operate in

You be surprised the wonders of olfactory fatigue. Stay in there long enough and you won't notice a thing. That's how they manage to live there and looks at you like your crazy when you say their house reeks.

Sounds like its normal then :) Alright guys, I'll call it remote control bypass plug from now on okay? :) mortuus, I was hoping it would be around the same size as the LaserGlow Galileo. At present its too long to fit in any of my holsters. I would have liked something like the Galileo but say...

okay, let me see if I can explain it better. My question had nothing to do with the safety plug, but my apparent term for it caused a bit of an uproar. So heres what I'm asking about: My HL 520 lays before me, the remote connector bypass is in, the rcr123A batteries are in, the key lock...

I take it they are now immune to Boric Acid? Seems like that stuffs been around for years

gee, that was embarrassing, googled buttplug and it gave me something totally unexpected. What would have been a more correct term? :)

I had roaches in my PC, can't be helped. This PC doesn't live in the house though, it lives in the tool shed, right the smack below the work bench. Below it stores plumbing parts, above it wood, PVC. One end of the work shed holds the lawn tools. Leaning against the shed on the outside are about...

My HL 532nm 100mW finally arrived, much to my disappointment was only 3/4" shorter than my HL 520nm 100mW. I bought this laser solely because it had the same interface as its big brother and was hoping to be at least 1.5" smaller. Anyway, no biggie. Too long, can't carry it for my intended...

Meade telescopes used to be excellent quality..... then they started using plastic gears in their alt-azi muth and their equatorial mounts, then their quality started going down hill. Meade sells lasers as an accessory, like buying a rifle with a throw in optic. Its going to work, but only...

In that case It would probably be close to a supercap/MLCC that fit the dimensions of an AA battery

lol.... okay, where do we start. A typical AA as in Zn/MnO2, NIMH, NiCd, NiZn, Li-FeS, LiMnO2, LiCoO2, LiMn2O4, LiFePO4, or LiNiCoAlO2? Different chemistry exhibit different electrical characteristics, all of which can exist in the same physical volume. That is, a cylindrical space measuring...