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User: hochwald

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  1. I used to collect these cameras around Adelaide on Harvesting Capacitors for Backyard Munitions · · Score: 0

    Over a couple of years I collected hundreds of these. I had all the Mini-labs in the city center collecting them for me and four stores in the suburbs. I couldn't collect them from Kodak stores as Kodak would recycle the cameras. I have a page on the subject, as well as some links.
    Collecting Disposable Flash Cameras for Parts
    I have recieved a few shocks when carelessly taking the cameras apart.
    Some of the developers told me they sometimes have recieved a shock when removing the film from the cameras.
    Remember to discharge the capacitor.
    The capactitors can be soldered into a square with 10 rows and 10 columns on a PCB to give about 800J. The voltage can be left at 300V or wired in series for a higher voltage. 100 of these capacitors give a good size bang when shorted. The stores these days have an incentive to keep the cameras, they can recieve goodies like Leathermans depending how many they send off to be recycled.
    I did recieve a good supply of batteries for my Metz flash, LCD, Radio and for friends while I collected the cameras.

  2. 2.45 Ghz powered grapes on Wireless Congestion · · Score: 0
  3. More links on New Lighting Technology To Wipe Out Wi-Fi Access? · · Score: -1, Redundant
  4. Beer glass on Science in the Microwave · · Score: 0

    Sam Barros has used a beer glass to contain his plasma.

    My experiment using a glass jar

    The problem when you don't use something to contain the plasma in the oven is that it can get sucked throuygh the vents by the fan, or sometimes it floats near the magnetron and destroys the mica covering.

  5. My email to Jean-Louis Naudin on Science in the Microwave · · Score: 0

    your site at this address mentioned a buzz produced by
    the plasma, this is produced by the cheap voltage
    doubler setup used in most microwaves. An explanation
    can be found here:-
    http://www.mtt.org/miscellany/fiftyanniv/c p_01intr o.htm

    Also many sites that talk about the repair of
    microwave oven's
    such as
    http://www.bithose.com/serfaq/REPAIR/F_micfaq. html
    and
    http://www.gallawa.com/microtech/double r.html
    detail the action of the doubler

  6. HPM's DEW's etc. on Science in the Microwave · · Score: 0

    Someone reassembling their microwave
    Sam's site with his remounted magnetron he has used for making plasmas
    I can't find the Hootenanny site right now, but it used to detail the contruction of a DEW with microwave parts and a horn. They used to upset the operation of some computers.
    Slava's site detailing the use of a magnetron, capacitors and horn to make a HPM

  7. Please don't link directly to angelfire videos on Science in the Microwave · · Score: 0

    Try going here instead, then you can download the video, as sites like angelfire want to pay for their their bandwidth by showing ads.

  8. Laptop LCD window on Low-end Laptops? · · Score: 0, Offtopic

    There was an article published in an electronics magazine on using the LCD displays from old laptops to make a window that you could electronically adjust the tint to control how much sun gets in the room.

  9. Re:The Real Problem With Cheap Laptops on Low-end Laptops? · · Score: 1

    I brought two 386 Toshiba laptops secondhand with dead batteries. They didn't come with power supplies. I took the batteries apart and soldered wires to the terminals, these wires then ran to an old computer power supply. I adjusted the 12V rail up to 14.4V using a trimpot inside the power supply.

  10. Picture of my 40MB Hard drive modification on Clear Hard Drive Mods · · Score: 1

    I have just taken a picture of the drive using my capture card and CCD camera, it's available here

  11. My 40MB Hard drive modification on Clear Hard Drive Mods · · Score: 1

    As an experiment I added a clear plastic cover to an old 40MB hard drive. I took off the old cover, cut up the clear plastic from some old CD cases and stuck them with silicone where the metal cover used to be. No bad sectors were found when I tested the drive with scandisk, after the silicone had dried. It also ran windows 3.1 normally.

    Another fun experiment I have tried is dragging some old 30pin RAM across the screen of a television to collect the static. The RAM modules passed all tests when put back in the 386 motherboard.