Recent content by greg_in_canada

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    Draco modding?

    Did anyone find someone to do LED upgrades?
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    Upgrade from a Draco?

    Thanks. Looks interesting too.
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    Upgrade from a Draco?

    Thanks Norm. It looks awesome. If they made a 10280 version that would be even better.
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    Upgrade from a Draco?

    Any other suggestions? Thanks - Greg
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    Upgrade from a Draco?

    Thanks. I may just do that. Greg
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    Upgrade from a Draco?

    Looks pretty nice. Is it still available? (Shows as out of stock on the Overready site.)
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    Upgrade from a Draco?

    I've been using a chrome Draco as my EDC for over 4 years. I love the size and the quality. I don't really love the UI since I don't change the brightness often, so when I need to I sometimes have trouble remembering how it works. My ideal light would be the size of a Draco or maybe a bit...
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    Charger for Draco battery?

    The charger I got with my Draco no longer works (LED always green). Where can I get another one? I don't need anything fancy since the Draco is my only light/electronics that uses cylindrical Lithium Ion cells. Thanks - Greg
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    Changes @ Lummi

    Thanks for the update Rob. Greg
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    Changes @ Lummi

    May has ended. How about an update for your customers and fans? Thanks - Greg
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    Electronics question: why not put a big cap on a PWM light?

    I think that would slow the switching of the FET so you would get more losses and heading in the FET. Greg
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    Emissive heatsink coatings

    Agreed. You also need to measure the resistor before and after temperature to show that it is cooler, not just the heatsink. Greg
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    Luce de Notte - Quick & Dirty Review

    The link says their product is about 10% per year, so instead of being 50% at 12 years (due to tritium decay) they would be 28% (0.9^12). That also implies that other companies that are less careful with their ingredients may be worse. Greg
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    Officially a small business owner. Check out my website!

    Nice site. You should probably match the white balance on the first few photos. The "after" shots are very blue. Also you should hide the counters since that's more of an amateur website thing. Good luck - Greg
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    Need Some Advice on Using Relays (Preventing Counter-EMFs)

    Diodes across the coil reduce the back EMF but also slow the opening of the contacts (due to the current shutting off slower). I read a paper from a relay manufacturer that recommended alternate methods. One method was to use a resistor of the right value to reduce the back EMF to a value the...

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