Recent content by cincin

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    Microscope LED conversion: Incandescent VS LED questions from newb

    Greetings! It's been a while, because the project got put on the back burner, but I just completed the conversion. Since I couldn't have done it without you guys I thought I'd let you all know that it was a full success! I'm a very happy camper. In an effort to help the next person doing a...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    I'm sorry if I'm being dense here, please bare with me. I understand that the POT resistance circuit can be low wattage, thanks to the driver DIM circuit. But the switch part of the POT also has a power rating. In the case of the POT I had chosen...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    So you're saying wire the power input to the driver through the switch pins of the POT, and wire the DIM and DIM GND through the variable resistance pins of the POT? Wouldn't I need a POT capable of 12.5W on the switch circuit for that? those appear hard to find in the 20K Ohm variety I need...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Excellent! Thanks. I'm really starting to understand more and more about those bits and pieces, just as I realize this, my forum user rating now shows "Enlightened". The forum knows. So a double throw rotary switch POT will work for that. $10 instead of $3 but it'll work just like the...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Hmmm wiring it backwards! Cool idea! But regardless of which way it's wired, isn't the OFF position of the switching POT going to cause FULL ON operation, since in the OFF position no current passes? I don't understand how switching POTs wiring works clearly
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Also, the XHP50 has a forward voltage of 12v, but I'm putting it on a 6v star board, does that mean that the forward voltage will be 6v? Just double checking I picked an appropriate battery pack... I ask so many questions.... you guys have been amazing help! I'll make sure to post when the...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Yep, I got that much figured out as well. I just need to find a way to put a switch/POT combo on this so the driver can be dimmed AND turned ON and OFF from the same knob.
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    Microscope LED conversion: Incandescent VS LED questions from newb

    I have yet another question: switching the BuckBlock driver on and off. Here's what the documentation (goo.gl/u5mXP0) says: “Where a manual on/off control is desired, the potentiometer in Figure 14 may be replaced by a pushbutton or toggle switch. The output current will be zero and the input...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Thanks for clarifying :) I'm glad you both agree as this would've made the choice difficult.
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Again, excellent insights! All the stuff I'm getting from Mouser I could not find equivalent from Digikey. Primarily the star board. Now that you say it won't fit I'm confused, mds82 seems to think it will. I can't find a star board that specifically says it's compatible with the XH-P50 on...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    No worries at all! I'm just thankful for the help. Ok, so I can't seem to get all the parts I need in Canada, or even from a single retailer in the US or China... so after taxes & shipping it's adding up to about $130 Canadian for the conversion... the Canadian dollar really sucks right now...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    And that is why I ask the experts, thank you kindly!
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Also, any reason I shouldn't go with the Cree XHP70? goo.gl/IoHg5O Same operating voltage, same CRI, same color, MORE lumens, HIGHER current (1050mA vs 700mA), slightly bigger die at 7mm (but still smaller than filament area in current bulb).
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Excellent! Thanks for the tips. I have my doubts that this star board will work: goo.gl/dspW1D It doesn't say anything about being compatible with the XHP series. I see SINKPad makes one specifically for the XHP50 in a 6v configuration, but DigiKey doesn't sell it. Would you kindly point me...
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    Microscope LED conversion: Incandescent VS LED questions from newb

    Brilliant! Any idea what temperature I should have the heat gun at, and how do I know it has "reflown", when to stop? hahahah I know nothing Thanks guys!
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