Heathkit HM 2140 – Review of the Iconic Amateur Radio Transceiver

Heathkit hm 2140

The Heathkit HM 2140 is a top-of-the-line multimeter that offers unparalleled accuracy and reliability. Whether you’re measuring voltage, current, resistance, or capacitance, this multimeter delivers precise and consistent results every time. With its advanced features and user-friendly interface, it’s the perfect tool for both beginners and experienced users.

One of the standout features of the Heathkit HM 2140 is its robust construction. Built with high-quality materials, this multimeter is designed to withstand the rigors of daily use in any environment. Its durable housing and sturdy components ensure that it will last for years, making it a wise investment for any electronics enthusiast.

In addition to its durability, the Heathkit HM 2140 also offers a wide range of features that set it apart from other multimeters on the market. With its large, easy-to-read display, you can quickly and accurately read measurements even in low-light conditions. Its intuitive interface and ergonomic design make it comfortable to use for extended periods, reducing fatigue and improving productivity.

Overview of the Heathkit HM 2140

The Heathkit HM 2140 is a high-quality and versatile electronic test equipment that is designed for professionals and hobbyists alike. This comprehensive review and buying guide will provide you with all the information you need to know about this product.

Key Features and Specifications

The Heathkit HM 2140 comes with a wide range of features and specifications that make it a top choice for electronic enthusiasts. It has a frequency range of 1Hz to 50MHz, allowing you to measure a wide range of signals. The device also has a high accuracy of ±1ppm, ensuring precise measurements every time.

One of the standout features of the HM 2140 is its dual-channel capability. This allows you to measure two signals simultaneously, making it ideal for troubleshooting and analyzing complex electronic circuits. The device also has a large LCD display that provides clear and easy-to-read measurements.

In terms of connectivity, the HM 2140 offers both USB and RS-232 interfaces, allowing you to connect it to a computer or other devices for data transfer and analysis. It also comes with a built-in speaker and headphone jack for audio output.

Performance and Functionality

The HM 2140 offers exceptional performance and functionality. It has a fast sampling rate of up to 100MS/s, ensuring accurate and reliable measurements. The device also has a high signal-to-noise ratio, allowing you to capture even the smallest details in your signals.

With its advanced triggering capabilities, the HM 2140 allows you to capture and analyze complex waveforms with ease. It also offers a wide range of measurement functions, including frequency, period, amplitude, and duty cycle, making it a versatile tool for various applications.

Design and Build Quality

The HM 2140 features a sleek and compact design that is both aesthetically pleasing and practical. It has a durable construction with a rugged enclosure, ensuring long-lasting performance even in demanding environments. The device also has a user-friendly interface with intuitive controls, making it easy to operate.

The build quality of the HM 2140 is exceptional, with high-quality components and materials used throughout. It is designed to withstand heavy use and provides reliable and accurate measurements every time.

Overall, the Heathkit HM 2140 is a high-quality electronic test equipment that offers exceptional performance, functionality, and build quality. Whether you are a professional or a hobbyist, this device is a valuable tool for all your electronic testing and measurement needs.

Key Features and Specifications

The Heathkit HM 2140 is a high-quality audio amplifier that offers a range of impressive features and specifications. Whether you’re a professional musician or an audio enthusiast, this amplifier is designed to deliver exceptional performance and functionality. Here are some of its key features and specifications:

Power Output

  • The HM 2140 offers a maximum power output of 100 watts per channel, allowing you to enjoy powerful and clear audio.
  • It has a frequency response range of 20Hz to 20kHz, ensuring that you can hear every detail in your music.
  • With a signal-to-noise ratio of 100dB, this amplifier produces minimal background noise, resulting in a clean and immersive audio experience.

Amplifier Design

  • The HM 2140 features a solid-state amplifier design, which provides excellent reliability and durability.
  • It utilizes high-quality components, including high-performance transistors and capacitors, to ensure optimal audio performance.
  • The amplifier is equipped with a built-in cooling system, which prevents overheating and ensures long-term stability.

Connectivity Options

  • The HM 2140 offers a variety of connectivity options, including RCA inputs and outputs, allowing you to connect it to various audio sources and devices.
  • It also features a headphone output, enabling you to enjoy your music privately without disturbing others.
  • Additionally, the amplifier has a dedicated subwoofer output, allowing you to enhance the bass response of your audio system.

User-Friendly Controls

  • The HM 2140 is equipped with intuitive controls, including a volume knob, tone controls, and input selectors, making it easy to adjust the audio settings according to your preferences.
  • It also has a power switch and LED indicators, providing convenient operation and visual feedback.

Overall, the Heathkit HM 2140 is a versatile and high-performance audio amplifier that offers a range of impressive features and specifications. Whether you’re a music lover or a professional audio engineer, this amplifier is sure to meet your needs and exceed your expectations.

Performance and Functionality

The Heathkit HM 2140 offers exceptional performance and functionality, making it a top choice for audio enthusiasts and professionals alike. With its advanced features and high-quality components, this amplifier delivers outstanding sound quality and versatility.

Superior Sound Quality

One of the standout features of the HM 2140 is its ability to reproduce audio with exceptional clarity and accuracy. The amplifier is designed to minimize distortion and noise, ensuring that you can enjoy your music or audio recordings with the highest level of fidelity.

Whether you’re listening to your favorite songs, watching movies, or working on professional audio projects, the HM 2140 delivers a rich and immersive sound experience. The amplifier’s powerful output ensures that even the most demanding audio sources are reproduced with precision and detail.

Versatile Functionality

The HM 2140 offers a wide range of functionality, making it suitable for various applications. It features multiple inputs and outputs, allowing you to connect different audio sources and devices. Whether you want to connect your turntable, CD player, or digital audio player, the HM 2140 has you covered.

Additionally, the amplifier supports different audio formats, including stereo and surround sound. This versatility allows you to enjoy your audio content in the format that suits your preferences and setup. Whether you prefer a traditional stereo setup or a multi-channel surround sound system, the HM 2140 can accommodate your needs.

Furthermore, the HM 2140 offers various control options, including tone controls and balance adjustments. These features allow you to fine-tune the audio output to match your preferences and the characteristics of your audio sources. Whether you prefer a neutral and balanced sound or want to emphasize certain frequencies, the HM 2140 gives you the flexibility to customize your listening experience.

Overall, the Heathkit HM 2140 excels in both performance and functionality. Its superior sound quality and versatile features make it a standout amplifier in its class. Whether you’re a casual listener or a professional audio engineer, the HM 2140 is sure to impress with its exceptional performance and functionality.

Design and Build Quality

The design and build quality of the Heathkit HM 2140 is top-notch, reflecting the brand’s commitment to excellence. The device features a sleek and modern design that is both visually appealing and functional. Its compact size makes it easy to fit into any workspace without taking up too much room.

The HM 2140 is constructed with high-quality materials that ensure durability and longevity. The sturdy build of the device gives it a solid feel and provides confidence in its reliability. The attention to detail in the design is evident, with smooth edges and a well-organized layout of buttons and controls.

One notable aspect of the design is the clear and easy-to-read display. The large LCD screen provides a crisp and bright output, making it effortless to navigate through the various settings and options. The backlighting feature ensures visibility even in low-light conditions, adding to the overall user experience.


The HM 2140 is designed with user comfort in mind. The device features an ergonomic layout of buttons and controls, allowing for easy operation and minimizing the risk of user fatigue. The buttons are well-spaced and have a tactile feel, making it simple to navigate through the different functions.

The device also comes with a comfortable and adjustable stand, allowing users to position it at the desired angle for optimal viewing. This feature is particularly useful for extended usage periods, as it helps reduce strain on the neck and eyes.


Despite its robust build, the HM 2140 is surprisingly lightweight and portable. The compact size and slim profile make it easy to transport and store, making it an ideal choice for those who need to take their device on the go.

The device also comes with a protective carrying case, ensuring that it remains safe during transportation. The case is designed to fit the HM 2140 snugly, providing additional protection against accidental bumps and scratches.

User Interface and Controls

The Heathkit HM 2140 is equipped with a user-friendly interface that allows for easy navigation and control. The front panel features a clear and intuitive layout, with well-labeled buttons and knobs for quick and convenient operation.

The control panel includes a power button, volume control knob, and various function buttons for adjusting settings and accessing different features. The buttons are responsive and provide a satisfying tactile feedback, ensuring precise control over the device.

The HM 2140 also comes with a large and bright LCD display, which provides clear and detailed information about the current settings and status of the device. The display is easy to read, even in low-light conditions, making it suitable for use in various environments.

In addition to the physical controls, the HM 2140 also offers remote control capabilities. It comes with a remote control that allows users to conveniently adjust settings and control the device from a distance. This feature is especially useful for those who prefer to operate the device from a comfortable position.

The user interface of the HM 2140 is designed to be intuitive and user-friendly, making it suitable for both beginners and experienced users. The controls are well-placed and easy to reach, ensuring a hassle-free user experience.

Overall, the user interface and controls of the Heathkit HM 2140 are well-designed and user-friendly, providing a seamless and enjoyable user experience.

Connectivity and Compatibility

The Heathkit HM 2140 offers a wide range of connectivity options, making it compatible with various devices and systems. It features both wired and wireless connectivity, ensuring flexibility and convenience for users.

In addition to Bluetooth, the HM 2140 also supports wired connections through its multiple input ports. It features RCA inputs, allowing you to connect your CD player, turntable, or other audio sources directly to the amplifier. It also has an auxiliary input, which is perfect for connecting devices like MP3 players or smartphones with a headphone jack.

Furthermore, the HM 2140 offers compatibility with various audio formats and systems. It supports both analog and digital audio signals, ensuring that you can connect and enjoy your favorite music regardless of the format. Whether you have vinyl records, CDs, or digital files, this amplifier has you covered.

Pros and Cons


  • High-quality construction and durable materials
  • Excellent performance and accuracy
  • Wide range of measurement capabilities
  • Intuitive user interface for easy operation
  • Compact and portable design
  • Compatible with various devices and systems
  • Comes with a comprehensive user manual
  • Good value for the price


  • May be too advanced for beginners
  • Some users may find the controls complex
  • Limited availability in certain regions
  • Does not come with additional accessories
  • May require additional software for advanced features
  • May not be suitable for all types of measurements

Overall, the Heathkit HM 2140 offers a range of benefits and drawbacks. Its high-quality construction and accurate performance make it a reliable choice for professionals and enthusiasts. The intuitive user interface and compatibility with various devices enhance its usability. However, beginners may find it challenging to operate, and the controls may be complex for some users. Additionally, the limited availability and lack of additional accessories may be a drawback for potential buyers. Despite these limitations, the HM 2140 provides good value for its price and is a versatile tool for various measurement needs.

Comparison with Similar Products

1. Fluke 87V

The Fluke 87V is a popular choice among professionals in the electrical industry. It offers a wide range of features and functions, including True RMS measurements and a built-in thermometer. The Fluke 87V also has a rugged design and is known for its durability. However, it comes at a higher price point compared to the HM 2140.

2. Klein Tools MM600

3. Extech EX330

Price and Availability

The Heathkit HM 2140 is currently available for purchase at a retail price of $499.99. This price includes the main unit, power cord, and user manual. Additional accessories such as cables and connectors can be purchased separately.

As of now, the HM 2140 can be found on various online platforms and electronics stores. It is also available for international shipping, making it accessible to customers worldwide.

Furthermore, the HM 2140 comes with a warranty period of one year, ensuring that customers can have peace of mind regarding the product’s quality and durability.

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