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  • EEVblog #729 – Mailbag

    Posted on March 31st, 2015 EEVblog 5 comments

    Another lengthy mailbag, with plenty of diverse stuff.
    RCA Airnergy Bullshit Video
    Forum HERE

    Kan Jam flying disc
    Psion 3A Organiser
    1974 808 RapidMan Calculator made in Canada.
    Russian IN-9 Neon bargraph display tube.
    Info & characteristic curves
    Wifi cellphone battery charging bullshit Kickstarter
    RF Energy Harvesting. Can a WiFi signal light up a LED?
    Flir VP50 Non-Contact voltage detector.
    Freescale PowerQuicc II security processor:
    APC Netbotz Room Monitor

  • EEVblog #728 – T4 LED Lighting

    Posted on March 29th, 2015 EEVblog 3 comments

    A quick rant on T4 fluorescent tubes, and a small upgrade to replace a T4 tube with a LED strip.
    Previous video on LED lighting Dave’s back deck

    Forum HERE

  • EEVblog #727 – How To Kill An Opamp

    Posted on March 25th, 2015 EEVblog 9 comments

    It’s all fun and games until an innocent opamp gets hurt!
    Dave proves he’s not the sharpest tool in the shed by killing an opamp in his µCurrent calibration test jig, whilst checking the calibration of course.
    Forum HERE

  • EEVblog #726 – Dual Xeon Video Editing Machine Build

    Posted on March 23rd, 2015 EEVblog 19 comments

    Dave builds and tests the 24 core dual processor 2.6GHz Intel Xeon E5-2630 v2 video editing machine and benchmarks against his current 8 core i7 3770K machine at 3.5GHz.
    This is one hour of PC building and software testing, if you find this stuff boring, DON’T WATCH IT!

    – Even doing a 1 hour render at 240W consumption, the heatsinks do not even get warm to the touch.
    – Yes, I need to fill all the blue slots (4 channels) to get best memory performance
    – No, EEC memory is not slower than Non-EEC.
    – No, the CPU’s are not thermal throttling. The core temps barely reach 40degC
    – I put the video card in the slot for the CPU2, not the main CPU1.
    – Direct uncompressed output using the Sony YUV Video For Windows codec actually works (it had issues on my old machine)
    1:46 for the 1min test video which is pretty good and the fastest yet. That was to the SSD. File size was 12.163GB for the 1 min, so that means a 1 hour video would need 730GB.
    Such an output would need about 114MB/s write speed, so that makes a 7200 rpm drive a WD Black suitable. 1GB+ of SSD would of course be very expensive and of no improvement.
    So this seems like the best solution for now.

  • EEVblog #725 – LG Plasma TV Teardown

    Posted on March 19th, 2015 EEVblog 13 comments

    Dave takes a peek inside the 50″ LG Plasma TV found in the dumpster.
    The Dumpster Dive video was on the EEVblog2 channel: