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Also, the phone company can make changes to its lines, equipment, oper- ations, or procedures that could affect the operation of the phone. The phone company notifies you of these chang- es in advance, so you can take the necessary steps to prevent interrup- tion of your phone service.

Your phone might cause TV or radio interference even when it is operating properly. To determine whether your phone is causing the interference, turn off your phone. If the interference goes away, your phone is causing it. Try to eliminate the interference by:

•Moving your phone away from the receiver

•Connecting your phone to an AC outlet that is on a different electri- cal circuit from the receiver

•Contacting a radio/TV technician or your local RadioShack store for help

LIGHTNING

Your phone has built-in protection cir- cuits to reduce the risk of damage from surges in phone line current. These protection circuits meet or ex- ceed FCC requirements. However, lightning striking the phone lines can damage your phone.

Lighting damage is not common. Nev- ertheless, if you live an area that has severe electrical storms, we suggest that you unplug your phone during storms to reduce the possibility of damage.

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Radio Shack ET-545 owner manual Lightning
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ET-545 specifications

The Radio Shack ET-545 is a classic electronic device that epitomizes the charm and functionality of portable technology from the late 20th century. Introduced during a time when personal electronics were gaining rapid popularity, it catered particularly to enthusiasts who sought reliability and usability in a compact design.

One of the standout features of the ET-545 is its advanced calculator functionality. It features a multi-line display, allowing users to view complex calculations and equations in a clear manner. This enhances the user experience, especially for students and professionals who often grapple with intricate mathematical problems. The calculator supports a range of mathematical functions, including trigonometric and exponential calculations, making it a versatile tool in academic and professional settings.

In terms of design, the ET-545 showcases a user-friendly interface with well-spaced keys and a simple layout. The device is compact, easily fitting into a pocket or bag, which makes it an ideal companion for those on the go. The durability of the build quality is commendable, reflecting the robust manufacturing standards of Radio Shack, a brand known for its long-lasting electronics.

The ET-545 is powered by batteries, emphasizing portability. This aspect eliminates the hassle of finding a power outlet when you're out and about. Users appreciate the long battery life, ensuring that the device remains functional for extended periods without the need for frequent battery changes.

Another notable characteristic of the ET-545 is its ability to perform conversions, such as unit conversions for measurements and currency, which were groundbreaking features for handheld devices of its time. This functionality proved invaluable for travelers and professionals dealing with international transactions.

In conclusion, the Radio Shack ET-545 is not just a piece of technology; it represents a significant chapter in the evolution of portable electronics. With its combination of mathematical capabilities, portability, and user-friendly design, it serves as a testament to the ingenuity of its era. For those who have fond memories of using this device, the ET-545 remains an iconic symbol of a time when personal electronics were just beginning to transform everyday life.
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