Recent content by Steelwolf

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    Western Australian Get Together

    I hardly ever check CPF anymore. Couldn't quite find the time between work, family and a couple of other hobbies. If there is anything happening before April, I'll try to get in. Then I'm off to Singapore for an extended, and quite possibly open-ended, period. Haven't really got that many...
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    Looking for large lens

    Can anyone help me? I know the usual source for flashlight lens is www.flashlightlens.com, but their UCL range only goes up to 52mm and they have a few 55mm ones elsewhere. I might need something closer to 90mm or 100mm diameter, preferably with anti-reflective coating. Does anyone know...
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    Suggest a driver??

    What is wrong with CPF??? I kept trying to log in and although I get the "Thanks for logging in" page, I kept getting reloaded with a guest interface. Gave up for a few days, tried again today and got in on the first try. NetKidz: Thanks for the pointer. Looks interesting. Funny thing is...
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    Suggest a driver??

    Just another thought... Shark system, 11.5V or 22V, 980mA Max out. 2.7-20V, 4A max in. Could I run say 3 Sharks in parallel, set up for 22V, 980mA each, going to 5 banks of 5 Crees? Battery input from a Li-ion pack 7.4V 10.2Ah. When the first Shark is powered up, each LED in the 5x5 matrix...
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    Suggest a driver??

    Yellow: Battery voltage and system is important in terms of figuring out discharge characteristics. Li-ion and NiMH give a nice flat discharge compared to alkaline. Also, they are capable of higher discharge currents before voltage sag occurs. 4A in is approx. 2C if you are using a 2000mAh...
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    Suggest a driver??

    I want to build a multi-LED light, probably 8 Crees. Thinking about running at 700mA-800mA, preferably with a couple of stepping levels below that. Power source would probably be Li-Ion pack. If I use a step up board, probably start at 7.4V, if step down, maybe 18.5V. I only know of LED...
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    Handwarmers

    The Zippo one is no different to the JonE type, just smaller and more elegant. By all accounts, if it is taken care of, the burner should last forever. Basically, it is a platinum catalyst. So long as you don't poison it with a leaded fuel, or arsenic, it doesn't get consumed or worn out.
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    Handwarmers

    I have used these solid fuel ones before, and was trying to move away from them, which resulted in me trying out liquid fuel and electric handwarmers. The solid fuel is a stick that looks like charcoal. It isn't hard to light if you have a hot flame source like the "jet" lighters or a Zippo...
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    CATEYE HL-EL530 - SSC rules !

    Szemhazai: If you found that superglue vapours will matt the LED, what did you end up using to close the light head?
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    All-night bike light & CatEye Mod.

    I've just opened up my EL530. It sure wasn't easy. Have a look at this thread. This picture kind of shows what needs to be done. In the EL530, the light head sort of consists of the dark silvery looking bit, followed by the translucent base (where the threads are to lock it in to the rest of...
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    NEW Bike light.....LED now has the same lumens as HID >>>>

    Planet Bike has a single piece HID called the Alias HID (note they have one model of Alias, no HID. Not the same thing). Looks interesting and might be worth the money. I think the major difference we are still seeing with HIDs and LEDs is single emitter versus at least 3. So the HID takes...
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    Bike light with dimming, recommend a driver?

    Why has this been moved? I understand that it is related to bike lights, but I'm trying to get an idea of a suitable electronics driver to use with the system. Isn't this a question more suited to the flashlight electronics forum? Anyway, wherever this thread ends up, the main questions are...
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    AMC7315: What type of regulator is it?

    AMC7135... Whatever. Saw that on DealExtreme. Thanks Bertrik and Legtu.
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    Bike light with dimming, recommend a driver?

    Sort of as an adjunct to my other recent thread in this forum... I'm planning to make an "All-in one" bike light, i.e. unlike the Lupine Wilma or PrincetonTec Switchback, where the light and battery are separate, I would like a single unit for easy removal. Taking a cue from the abovementioned...
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    AMC7315: What type of regulator is it?

    I've had a look at the data sheet and it doesn't explicitly state. It is a linear regulator or switching/buck? I'm planning to build a bike light and am trying to figure the battery set up. If it is buck, I could start with a much higher voltage so that it stays in regulation longer. If it...
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