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File:Al Qaida watch timer with opto isolator.jpg

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Al_Qaida_watch_timer_with_opto_isolator.jpg (499 × 315 pixels, file size: 115 KB, MIME type: image/jpeg)

Description

al Qaida watch timer with opto isolator.

  • Original caption: "
    <larger>Al Qa'ida Casio Watch Timer with Opto-isolator</larger>

    Recovered since mid-2002 in Afghanistan and Pakistan, this device uses an opto-isolator to interface with the Casio digital watch alarm and a safe-arm delay timer. This is a much safer circuit to use than other versions of the Casio Watch Timer (Sheets 05706 & 84071).
    *Time Delay: User programmable up to 23 hours, 59 minutes in one minute increments.
    *Power Source: Two standard 9-Volt batteries in parallel (9Vdc) with no isolation.
    *Anti-Tamper Features: None
    *Watch Type: Casio F-91W, but other digital alarm watches could be utilized.

"
Date Unknown date
Source https://www.scribd.com/doc/12858174/IED-Trigger-Recognition-Guide
Author Unknown authorUnknown author
Permission
(Reusing this file)
Public domain
This image is a work of a U.S. military or Department of Defense employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain in the United States.

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b0f8783ba2cb06113cb5d571cd765859d6605850

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Date/TimeThumbnailDimensionsUserComment
current13:45, 1 April 2013Thumbnail for version as of 13:45, 1 April 2013499 × 315 (115 KB)Geo Swan{{Information |Description=al Qaida watch timer with opto isolator. *{{Original caption|<larger>'''Al Qa'ida Casio Watch Timer with Opto-isolator'''</larger> <p>Recovered since mid-2002 in Afghanistan and Pakistan, this device uses an opto-isolator to...

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