208-B ALLEN B DU MONT Laboratories Cathode Ray Oscillograph

Review ALLEN B DU MONT Vintage Laboratories Cathode Ray Oscillograph Type Read

The Allen-Bradley 208-B Laboratories Cathode Ray Oscillograph, manufactured by Rockwell Automation, is a versatile and powerful instrument designed for measuring and analyzing electrical waveforms in various applications. This oscilloscope boasts an ergonomic design and user-friendly interface, making it an ideal choice for engineers, technicians, and students.

The 208-B oscilloscope features a high-resolution 5-inch monochrome CRT display with a maximum deflection of 7.62 cm (3 inches) and a frequency response of up to 50 MHz. This enables the instrument to accurately capture and display complex waveforms in real time, providing valuable insights into electrical signals and their behavior.

1. Automatic and manual triggering capabilities, allowing users to capture waveforms at specific points or during specific events.

2. Curve tracing functionality, which enables users to display the relationship between voltage and current by recording the deflection of the electron beam as a function of time.

3. Zoom and markers, which help users analyze waveforms in greater detail and identify specific features or anomalies.

4. A built-in function generator, which can generate various waveforms to test and calibrate electrical systems.

5. A powerful math function library, which includes operations like Fourier analysis, average, peak-to-peak, and root mean square (RMS) calculations.

Additionally, the Allen-Bradley 208-B oscilloscope includes a variety of input and output interfaces, such as BNC, Banana, and GPIB, which allow users to connect and interface with other test equipment and measurement devices. The oscilloscope also features a rugged design, making it suitable for use in industrial environments.

In summary, the Allen-Bradley 208-B Laboratories Cathode Ray Oscillograph is a comprehensive and powerful instrument that offers high-resolution waveform analysis, essential functions and features, and a user-friendly interface. Its rugged design and versatile connectivity options make it an indispensable tool for engineers, technicians, and students working in electrical and electronics engineering applications.

The Allen-DuMont 208-B Cathode Ray Oscillograph (CRO) is a vintage piece of test equipment, which was widely used in laboratories and educational institutions until the advent of digital oscilloscopes. Here are some pros and cons of buying an Allen-DuMont 208-B CRO:

1. Analog Display: The CRO provides an analog display of the waveform, which some users may find more intuitive and easier to interpret, especially for complex signals.

2. Tube Technology: The vacuum tubes used in the CRO add to its vintage appeal and make it an interesting collector's item.

3. Built-in Functions: The 208-B model comes with built-in functions such as amplitude modulation, frequency modulation, and envelope detection, which can be useful for specific applications.

4. Durability: The CRO is built like a tank, with a sturdy metal case and heavy-duty components, making it a reliable and long-lasting investment.

5. Educational Value: Using a CRO can be an educational experience for students and hobbyists interested in electronics and test equipment.

1. Limited Bandwidth: The CRO has a relatively limited bandwidth compared to modern digital oscilloscopes, making it less suitable for high-frequency applications.

2. Limited Memory: The CRO has a limited memory depth, which means that it can only display a small segment of the waveform at a time.

3. Maintenance: The CRO requires regular maintenance and calibration to keep it in good working order, which can be time-consuming and costly.

4. Power Consumption: The CRO consumes a significant amount of power, which can be a concern for those who want to use it on battery power or in remote locations.

5. Size and Weight: The CRO is a large and heavy piece of equipment, which can make it difficult to transport and store.

The Allen-DuMont 208-B Cathode Ray Oscillograph is a unique and interesting piece of test equipment with its analog display, tube technology, and built-in functions. However, it also has its limitations, such as limited bandwidth, memory depth, and the need for regular maintenance. Additionally, its size and weight, as well as its power consumption, can make it less practical for some applications.

If you are looking for a vintage test equipment collector's item or have a specific application that requires the functions provided by the CRO, then the Allen-DuMont 208-B Cathode Ray Oscillograph could be a worthwhile investment. However, if you need a more versatile and practical oscilloscope for general use, then a modern digital oscilloscope would be a better choice.

Details:

I chose calculated shipping based on the weight of item which is close to 50lbs. I m not sure of its ability to do the job it is supposed to, that's why its for parts or repair. I see occasional green lines go across the screen as mess with dials. I tried to test the unit but honestly have no idea what I m doing.

This oscilloscope, known for its cathode feature, allows detailed analysis and inspection in various fields such as business, industrial, testing. The vintage Allen b Du Mont laboratories cathode ray oscillograph type 208-B is a historical piece of equipment from the USA.

specifications oscillovectscopes:

• brand: Allen B Du Mont
• mpn: 208-b
• features: Cathode
• country/region of manufacture: United States

shipping oscillovectscopes:

• transit: 5-12 days
• service: usps ground advantage
• carrier: usps
• class: standard
• type: calculated

seller oscillovectscopes:

• # reviews: 3
• rating: 100.0%
• city: hubert, north carolina

returns oscillovectscopes:

• policy: no returns

payments oscillovectscopes:

• other
• wallet: apple-pay
• credit card: mastercard

offer oscillovectscopes:

• best offers: true
• options: ship-to-home
• prices: $1980.00–$2080.00
• item condition:
  • New
  • New – Open box
  • Used
  • Ungraded
• started: october 3, 2025
• in stock #: 5
• availability: in stock
• sold #: 12

general oscillovectscopes:

• category: Business & Industrial > Test, Measurement Inspection > Analyzers Data Acquisition > Oscilloscopes Vectorscopes