• EEVblog #893 – Mailbag

    More Mailbag Monday
    Forum HERE

    Infinity PV organic printed solar cells:
    Panasonic 840 JE-840U calculator teardown
    LED controller car computer thingo teardown
    Old school parallel port software protection dongle teardown
    World’s first logic IC! The Fairchild µL900 series, as used in the Apollo guidance computer.
    Dave is taken to task about his religious rant in a previous video. Can he destroy Dave with a logical argument?
    Expert witness court case letter.
    Cheap ebay soldering iron of death teardown
    Cheap BEC brand voltage regulator for model airplanes, is it any good? Will it meet it’s claims?
    Silego GreenPAK Dual-Supply Programmable Mixed Signal Matrix

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      • Chris Fairhall

        That BEC, you multiplied the input voltage by the output current.
        You should have multiplied the 15A by the 6.5V output voltage, that’s still a low of power, 97.5W. The input voltage of 50.4V is 12 lithium cells in series.

        The blue thing, that’s a brushless speed control for an RC car.

      • Glen Bartholomew

        Have you tried to put on cell over another to see what the combined output might be?

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