Features, FCC Wants YOU to Know | Radio Shack XL-260 specs

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ˆFeatures

Your RadioShack High Power 4/3/2-Chan- nel Bridgeable Amplifier produces a total of 260 watts to give added punch and power to your vehicle’s existing auto sound system.

The amplifier produces up to 130 watts per channel (if bridged) of clean, powerful sound at all audio frequencies with minimum distor- tion. You can connect your auto sound sys- tem’s low-level or speaker-level outputs to this amplifier.

Its features include:

14K Gold-Plated Noise-Isolated Low-Lev-

el Input Jacks — let you connect low-level (preamplifier) signal inputs to match your auto sound system’s output for the best high- fidelity performance.

14K Gold-Plated Speaker Terminals — de- signed for low impedance, high conductivity, and minimum corrosion, to provide the high- est signal transfer and lowest sound distor- tion.

Input Level Controls — let you adjust the level of the audio signals that enter the am- plifier.

Automatic Power Switching — can auto- matically turn the amplifier on or off when you turn your auto sound system on or off (depending on how you hook up the amplifi- er).

Bridging Capability — lets you combine the amplifier’s four 65-watt channels so you can use the amplifier with only two channels that produce a total of 130 watts from each chan- nel.

Mute Turn On Circuit — eliminates the thump you hear when you turn on some am- plifiers.

Power Indicator — lights when power is supplied to the amplifier.

Protection Indicator — lights if the amplifier shuts itself down.

Crossover Frequency Circuit — lets you adjust the crossover frequency from 45–400 Hz. This lets you set up the amplifier so you can connect a subwoofer.

Short Circuit Protection — distorts the am- plifier’s sound if any output channel shorts, alerting you to turn off the auto sound sys- tem.

Auto-Off— temporarily shuts down the am- plifier to protect the amplifier from overheat- ing or input overloads. The amplifier restarts automatically when it cools or the problem is corrected.

THE FCC WANTS YOU TO KNOW

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

•moving your amplifier away from the receiver

•contacting your local RadioShack store for help

If you cannot eliminate the interference, the FCC requires that you stop using your ampli- fier.

Features		3

XL-260 specifications

The Radio Shack XL-260 was a pioneering model in the compact scientific calculator market introduced in the early 1980s. This device was particularly well-regarded for its unique blend of functionality, portability, and affordability, making it a popular choice among students and professionals alike.

One of the main features of the XL-260 was its classic LCD display, which offered a clear and easy-to-read output. The display was capable of showing up to 8 digits and allowed for straightforward viewing of calculations. This was particularly beneficial for users who needed to perform complex mathematical computations without experiencing eye strain.

The XL-260 was equipped with a wide range of mathematical functions that catered to different user needs. Basic arithmetic operations such as addition, subtraction, multiplication, and division were always accessible. Additionally, it featured advanced functions including square roots, percentages, and memory storage, allowing users to save and recall values quickly. This made it an excellent tool for engineering students and professionals who often needed to perform numerous calculations.

One of the standout technologies of the XL-260 was its use of solar power, which complemented its battery operation. This hybrid power source ensured that users could rely on the calculator for extended periods without the constant need for battery replacements. The solar panel, situated atop the device, captured light to power the electronic components, showcasing a forward-thinking approach to energy efficiency for consumer electronics during that era.

Another characteristic of the XL-260 was its user-friendly layout. The calculator had well-defined buttons that provided tactile feedback, making it easy to input data accurately. The keys were designed to be durable and responsive, reducing the potential for user error during fast-paced calculations. The compact design and lightweight profile added to its appeal, allowing users to easily carry it in their bags or even pockets.

Overall, the Radio Shack XL-260 represented an important era in the evolution of personal calculators. Its combination of essential features, user-oriented design, and innovative power solutions made it a staple for many during its time. Though the landscape of technology has evolved significantly since its release, the XL-260 remains a nostalgic symbol of early digital calculation devices that laid the groundwork for future advancements in scientific computing.