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Thread: Milkyspit's MC2 Thread (also Milky Tester)

  1. #271
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Doodz!!!

    I may have found a 4AA host for the MC2... or perhaps some variation of the MC2! What do you guys think...




    I ordered a half-dozen so hope a few folks might actually want one!

    Says the thing's weatherproof but not waterproof.
    --Scott

  2. #272

    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    I'm in.
    The shadows are darkest during the day.

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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Scott, which 5mm leds did you use in the MC2. Brand name. Thanks,

    Bill

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    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Quote Originally Posted by Bullzeyebill
    Scott, which 5mm leds did you use in the MC2. Brand name. Thanks,

    Bill
    Jeled 50kmcd. They're among the most efficient 5mm LED of all. Did quite a bit of research, including getting efficiency curves plotted for a number of candidates, and for this application the Jeled was the best choice. You didn't doubt that Uncle Milky tried to make you a good product, did you?

    BTW, your MC2 was mailed yesterday.
    --Scott

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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Scott, thanks for info. Didn't doubt your striving for the best, however I think you would be six feet under if you were my Uncle.

    Bill

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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Scott, another question. Is it ok to cut the MC2 spring down considerably? I have a Surefire dummy battery for one cell testing.

    Bill

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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    What projection angle are these LEDs?

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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    I just received the MC2s, thanks Scott that was fast. I've put a diffuser on it and so far it's worked out great but I'll know more after using it for a couple of days. It's a Kodak film canister.






    -LT
    lunal tic (n)
    a distinctive behavioral trait or quirk directly related to or caused by light [15th cent. Latin lunaris. Ultimately from an IE word meaning “light,”] and [Early 19th cent. Italian ticchio.] see also: moon quirk

  9. #279
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    none
    Quote Originally Posted by Overload
    What projection angle are these LEDs?

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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    for one cell just screw the spring out furthur
    Quote Originally Posted by Bullzeyebill
    Scott, another question. Is it ok to cut the MC2 spring down considerably? I have a Surefire dummy battery for one cell testing.

    Bill

  11. #281
    Flashaholic* Lunal_Tic's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    I've left them on for a while. One has one CR123 that was at 2.8V but couldn't get the ZTS to register; the other has 2 cells of 2.5V each, ZTS didn't even blink on these. The single cell version is running steady on amber but the 2 cell one is switching between white (high I think), amber then fade to off all w/in a 5 second period. I thought when it got down to almost nothing it just faded out on the amber LED.

    Any insight?

    TIA,
    -LT
    lunal tic (n)
    a distinctive behavioral trait or quirk directly related to or caused by light [15th cent. Latin lunaris. Ultimately from an IE word meaning “light,”] and [Early 19th cent. Italian ticchio.] see also: moon quirk

  12. #282
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Quote Originally Posted by Lunal_Tic
    I've left them on for a while. One has one CR123 that was at 2.8V but couldn't get the ZTS to register; the other has 2 cells of 2.5V each, ZTS didn't even blink on these. The single cell version is running steady on amber but the 2 cell one is switching between white (high I think), amber then fade to off all w/in a 5 second period. I thought when it got down to almost nothing it just faded out on the amber LED.

    Any insight?

    TIA,
    -LT
    LT, the MC2 tries its best to do the right thing but sometimes the cells just don't cooperate. Sounds like one of the cells is pretty badly depleted, and when the load is applied (yes, it's only 20mA, but the cell is in such bad shape even THAT seems like climbing Mt. Everest to it!) the cell's voltage tanks very quickly. You're going from 5V or so when not running anything, very quickly down to 2.5V or even lower. The MC2 checks voltage about once per second, so if the voltage drops WITHIN ONE SECOND by that magnitude then you very well could see no amber at all, just have no light. Then the cells rest and the bad one recovers over the next few seconds, registers a higher voltage reading, and it's back to white.

    Moral of the story: 123 cells are strange animals!

    If you test the cells one at a time you may find one of them in worse condition than the other. You could perhaps toss that one in the trash and replace with something a little better.

    Or, you could try turning down the brightness within the first second of turning on the light... you may find the cells work just fine at low output or even at amber output, but don't work very well at high or medium output. Experiment a bit!
    --Scott

  13. #283
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    LT, forgot one thing... those photos are GREAT... though I should mention that the MC2 was designed to light a room by bouncing light off the ceiling. Of course, if your ceiling isn't very reflective, or if you have no ceiling at all (such as outdoor use) the diffuser is a great idea!

    Quote Originally Posted by Bullzeyebill
    Scott, another question. Is it ok to cut the MC2 spring down considerably? I have a Surefire dummy battery for one cell testing.

    Bill
    Bill, If you do decide to cut down the spring, I think it would be better to pull the existing spring out of the cup and save it (it's not glued into the cup, just friction fit) then replace with a shorter spring of your choice. That way you can experiment to your heart's content, but still return to the original spring if you change your mind later.
    --Scott

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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    I have the MCs tied to the wall as markers so the diffusers help a bit. I do have some pretty spent cells I just measured one in the millivolts. How far down will this work on the amber?

    -LT
    lunal tic (n)
    a distinctive behavioral trait or quirk directly related to or caused by light [15th cent. Latin lunaris. Ultimately from an IE word meaning “light,”] and [Early 19th cent. Italian ticchio.] see also: moon quirk

  15. #285
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Quote Originally Posted by Lunal_Tic
    I have the MCs tied to the wall as markers so the diffusers help a bit. I do have some pretty spent cells I just measured one in the millivolts. How far down will this work on the amber?

    -LT
    The amber will light steady until total input voltage drops below 2.6V (remember, in 2x123 that's the COMBINED voltage for the two cells)... and it'll continue to light up, though pulsating gently (by design) all the way down to 1.8V or so of combined voltage... it'll also be getting gradually dimmer from about 2.0V on downward... above that the amber will run at regulated brightness.
    --Scott

  16. #286
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Quote Originally Posted by milkyspit
    Dangit Tic and Lad, got a soft spot in my heart for international folks. They need their light! Watch for PMs incoming momentarily.
    And 2 MC2's have landed in Monaco. Super fast delivery!! Thanks.

    These really are an excellent product, the perfect standby emergency light, thanks again Scott, I am very pleased.

    Regards

    Graham


  17. #287
    Flashaholic* Lunal_Tic's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Bear with me on this one I don't really know that much about how batteries work and all the tech stuff that's been posted doesn't help in this application.

    I pulled the 2 cells that were going white to amber and replaced them with a pair that read a higher voltage on a meter. Put them in last night on amber, this morning is was blinking fast and about 10 minutes ago turned off. I popped out the batteries and checked them again on the meter one reads 2.58V the other read -170mV. It seems one cell had gone and reversed charge on me. If left unattended could this have gone nasty?

    -LT
    lunal tic (n)
    a distinctive behavioral trait or quirk directly related to or caused by light [15th cent. Latin lunaris. Ultimately from an IE word meaning “light,”] and [Early 19th cent. Italian ticchio.] see also: moon quirk

  18. #288

    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    I don't think at that current draw. I think i've had one that was more negative than .17v, though i'm not positive.
    The shadows are darkest during the day.

  19. #289
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Quote Originally Posted by London Lad
    And 2 MC2's have landed in Monaco. Super fast delivery!! Thanks.

    These really are an excellent product, the perfect standby emergency light, thanks again Scott, I am very pleased.

    Regards

    Graham
    Terrific, Graham, and thanks! That's great news!!

    Quote Originally Posted by Archangel
    Quote Originally Posted by Lunal_Tic
    Bear with me on this one I don't really know that much about how batteries work and all the tech stuff that's been posted doesn't help in this application.

    I pulled the 2 cells that were going white to amber and replaced them with a pair that read a higher voltage on a meter. Put them in last night on amber, this morning is was blinking fast and about 10 minutes ago turned off. I popped out the batteries and checked them again on the meter one reads 2.58V the other read -170mV. It seems one cell had gone and reversed charge on me. If left unattended could this have gone nasty?

    -LT
    I don't think at that current draw. I think i've had one that was more negative than .17v, though i'm not positive.
    Archangel's right, shouldn't be a problem... during testing I've discovered several cells that ended up slightly reverse charged... but the flash amps reading for the cells is essentially 0.00A, meaning they have virtually no oomph behind them, no capacity to pump current through anything.

    This is one reason why the test function is part of the MC2... you still want to match a pair of similar cells... I would NOT recommend matching that reverse charged cell with a fresh 123 cell, for instance... VERY BAD IDEA!

    What you really want to do for 2x123 operation is match a pair of cells that each cause pulsing amber... OR a pair of cells that each cause solid amber... that way you'll know both cells are of roughly similar condition.
    --Scott

  20. #290
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Recent shippings, including items going into the mail tomorrow morning!

    (This is a hastily put-together list, so it's entirely possible there are additional MC2 units on the way to folks who have paid recently, but I forgot to put 'em in the list here... no worries... your MC2s are coming regardless of my faulty memory!)

    cd-card-biz
    Bullzeyebill
    bwaites
    MSaxatilus (again!)
    bucken
    Calamityville_Horror
    europium
    karlthev
    Overload
    Yooper
    Xflash

    OPEN SEASON ON MC2... An Experiment!

    ANYONE who wants one RIGHT NOW, I've got 13 available... post here how many you're ordering FIRST them send Paypal here as follows... I'll get the first 13 units out immediately and build more for folks who just miss. It's IMPORTANT to post your intention here FIRST so others will have some idea of how many units remain! Something like, "I'll take 2. Cash Paypal incoming."

    Order info...

    --Scott

  21. #291

    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Ordering quantity 1.

    Thurmond
    Last edited by Tritium; 10-09-2006 at 11:59 AM.
    Resistance is Futile. You Will be Modded!!
    Infinity (CMG that is) and Beyond!!

  22. #292
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Thurmond, PP received... your MC2 is packed, posted, and ready to ship tomorrow as soon as the post office opens!

    WOOHOO!!

    Yaesumofo, waiting for your PP and yours could go out in the morning, too!

    Who's next?
    --Scott

  23. #293

    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Thanks Scott.



    Thurmond
    Resistance is Futile. You Will be Modded!!
    Infinity (CMG that is) and Beyond!!

  24. #294
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Hi Scott,

    I'll take one of the MC2's that you have ready!

    PayPal (Cash) sent for 1 MC2 with international delivery $65

    Many thanks,

    Simon
    Last edited by simonsays; 10-10-2006 at 03:52 AM.
    Shine on, shine a light on me. Like a glittering prize I saw you upon a clear day.

  25. #295
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Simon, PP received... your MC2 is packed and in the mail.
    --Scott

  26. #296
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Quote Originally Posted by milkyspit
    Archangel's right, shouldn't be a problem... during testing I've discovered several cells that ended up slightly reverse charged... but the flash amps reading for the cells is essentially 0.00A, meaning they have virtually no oomph behind them, no capacity to pump current through anything.

    This is one reason why the test function is part of the MC2... you still want to match a pair of similar cells... I would NOT recommend matching that reverse charged cell with a fresh 123 cell, for instance... VERY BAD IDEA!

    What you really want to do for 2x123 operation is match a pair of cells that each cause pulsing amber... OR a pair of cells that each cause solid amber... that way you'll know both cells are of roughly similar condition.
    Excellent info, I couldn't figure out the "testing" aspect of the MC2. The cells I've been sticking in won't even fire a ZTS so other than starting voltage I've no clue how much juice is left.

    -LT
    lunal tic (n)
    a distinctive behavioral trait or quirk directly related to or caused by light [15th cent. Latin lunaris. Ultimately from an IE word meaning “light,”] and [Early 19th cent. Italian ticchio.] see also: moon quirk

  27. #297
    Flashaholic* Omega Man's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Scott, I'm sorry to say that $60 is a bit steep for me on this, so I'm regretfully backing out for the time being.
    RIP Don and Mike Show. Long Live The Mike O'Meara Show!

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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Quote Originally Posted by milkyspit
    Simon, PP received... your MC2 is packed and in the mail.
    Outstanding! Now its just a question of waiting for the postman. Many thanks!

    Simon
    Shine on, shine a light on me. Like a glittering prize I saw you upon a clear day.

  29. #299
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Omega, that's okay, I understand... I do hope you understand that I'm definitely not getting rich off these! It's been mainly a labor of love, and the $55 plus $5 shipping comes nowhere close to covering the time and effort I've put in... heck, material cost alone eats up the majority of the price!

    Anyway, peace bro... I'm here when you need me.
    --Scott

  30. #300
    Flashaholic* milkyspit's Avatar
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    Default Re: Milkyspit's MC2 Thread (also Milky Tester)

    Built some more, currently 10 units available for immedate shipment, then I'll need to restock some parts to make more. Those in need, order now! Those who have the MC2, post your experiences, tips, whatever... it just might help someone else!
    --Scott

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