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Thread: Inside a maxys

  1. #1
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    Default Inside a maxys

    So, we have 4 dead ones here.. I decided to open one, just to see what resided inside... Hmmmm, lets just say I was expecting for a little more than what I saw..
    Attached Thumbnails Attached Thumbnails maxys.JPG  

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  2. #2
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    Just need to find out who makes the laser diode, pass info onto Bridge, and we can all have tight specc'ed reds!

  3. #3
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    Default

    Quote Originally Posted by dave View Post
    So, we have 4 dead ones here.. I decided to open one, just to see what resided inside... Hmmmm, lets just say I was expecting for a little more than what I saw..
    Huh!!! that looks like a simple LM317 diode driver.
    How are these modules modulated?
    is there another driverboard?

  4. #4
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    Thats pretty much just a LM317 driver

    I like the heatsinks though, I could make a few nice modules with that hehehe ...

  5. #5
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    No, its not a LM317 driver.. That TO220 is a low dropout regulator.. It looks like the rest of it is a constant current driver, very similar to a die4drive
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  6. #6
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    That one must be a late model....it has a PCB of sorts....most of the circuit was a dead bug package and a lot of the parts had the nomenclature dremeled away.
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  7. #7
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    I'm having a hard time finding $279 worth of parts there...

    Even when you consider the time to assemble everything, there was clearly a healthy profit margin on those things. And I find it difficult to accept that Marconi "hand-tuned" each of the drivers, as he claimed numerous times. There's nothing to tune!

    Adam

  8. #8
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    I aquired a second hand Maxy with a dead diode some months ago so I decided to open it up and frankly was amazed at the heath robinson construction, which made me glad that I had not ever purchased one for full cost. I think the key to these is simply the optics Chuck used and diode which I seem to remember him being (righty) secretive over. Looking at the one I have I doubt there is anything that sophisticated in the driver to make it outstanding.

    Rob
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  9. #9
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    Like I said, pity we can't find out what it was all made up of and then Bridge to copy it.

    It would be good for his company and good for us, not least of which because if it is as simple as it looks, then maybe the price could actually be even lower than Marconi's prices.

    I'm sure a lot of the big boys eg. CNI would be interested to know given the beam specs.

  10. #10
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    Simple, it's made of a long-die diode thats driven way over spec.
    Unlikely any of the manufacturers would be interested in doing that, in fact they (the good ones that is) will run the diodes quite a bit below spec to achieve a log life.

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