154-0701-05 TEKTRONIX Oscilloscope Crt Tube Nos

Review TEKTRONIX Oscilloscope P-31 Crt Tube P40 Nos

The Tektronix T7400-31-2 oscilloscope featuring the P-31 CRT tube with model numbers P40 and R5440 NOS, is a vintage piece of test equipment that was once a staple in electronics laboratories and workshops. This oscilloscope is a part of Tektronix's T7400 series, which was known for its high performance and reliability.

The CRT (Cathode Ray Tube) display tube at the heart of this oscilloscope is the P-31 model with P40 and R5440 NOS designations. The NOS (New Old Stock) status signifies that this tube is a newly manufactured replica of the original tube used in the oscilloscope during its production era. The P-31 tube is a high-resolution, high-precision tube, capable of displaying complex waveforms with great detail and accuracy. The tube has a screen size of approximately 10 inches diagonally, which provides ample space to view intricate waveforms.

The Tektronix T7400-31-2 oscilloscope offers a bandwidth of 50 MHz, which is more than sufficient for most general-purpose electronic testing applications. It also supports a maximum input voltage of 500V and a maximum input current of 1A, making it capable of handling high-voltage and high-current signals. The oscilloscope offers a standard set of features, including DC and AC coupling, 1:1 and 10:1 probing, and a cursors and measurement functions.

The oscilloscope's front panel is adorned with a plethora of controls, indicators, and switches that provide users with complete control over the oscilloscope's functionality. The control layout is intuitive and user-friendly, making it easy for users to navigate through the various oscilloscope settings and measurements. The oscilloscope also features a large, easy-to-read front panel display that shows crucial information such as input voltage, time base, and triggering status.

The Tektronix T7400-31-2 oscilloscope is a valuable addition to any electronics laboratory or workshop, especially for those who appreciate the classic look and feel of vintage test equipment. Its high performance, reliability, and versatility make it a must-have tool for electronic troubleshooting and design verification. The inclusion of the P-31 CRT tube with P40 and R5440 NOS designations ensures that this oscilloscope will continue to function optimally for years to come.

The Tektronix T7400-31-2 oscilloscope with P-31 CRT tube model number P40 5440 R5440 NOS is an older model oscilloscope that may still be of interest to hobbyists, technicians, or engineers working on vintage equipment or educational settings. Here are some potential pros and cons of purchasing this oscilloscope:

1. Analog Display: The CRT (Cathode Ray Tube) display provides a high-resolution, real-time representation of the signal being measured, making it ideal for observing complex waveforms and analyzing signal details.

2. Wide Bandwidth: With a bandwidth of 200 MHz, this oscilloscope can handle signals with a wide range of frequencies, making it suitable for various applications.

3. High Voltage Capability: The oscilloscope can handle input voltages up to 1000V, making it suitable for measuring high-voltage signals.

4. Versatility: The oscilloscope offers various features such as cursors, markers, and math functions, allowing for precise measurement and analysis of signals.

5. Durability: CRT oscilloscopes are known for their robustness and reliability, making them a good investment for long-term use.

1. Size and Weight: As a CRT oscilloscope, this model is larger and heavier than modern digital oscilloscopes, which may make it less portable.

2. Limited Memory: The oscilloscope has a limited memory depth, which may not be sufficient for capturing long signals or analyzing complex events.

3. Maintenance: CRT oscilloscopes require regular maintenance, including tube replacement, to ensure proper functioning.

4. Cost: The price of the oscilloscope may be higher than modern digital oscilloscopes with similar specifications due to its vintage status and the need for regular maintenance.

In conclusion, the Tektronix T7400-31-2 oscilloscope with P-31 CRT tube model number P40 5440 R5440 NOS offers several advantages such as a high-resolution analog display, wide bandwidth, and high voltage capability. However, it also comes with some disadvantages, including its large size and weight, limited memory, and the need for regular maintenance. Ultimately, the decision to purchase this oscilloscope depends on the specific requirements of the user and their budget. If the user values the advantages of an analog CRT display and is willing to invest in the maintenance, then this oscilloscope could be a good investment. Otherwise, a modern digital oscilloscope may be a more practical option.

Details:

Tektronix T7400-31-2 p-31 phosphor crt replacement kit, includes a new old stock 154-0702-05 cathode ray tube with p31 phosphor. New old stock in the factory packaging. This crt may fit other 5000/7000 series oscilloscopes as well. Check compatibility before buying!, this crt kit includes a new Tektronix 152-0495-00 HIV multiplier in sealed bag and small hardware along with the original instructions to perform replacement.

This is a factory replacement crt kit for the Tektronix p40, 5440, and R5440 oscilloscopes.

specifications oscillovectscopes:

• brand: Tektronix
• mpn: 154-0701-05
• model: P40 5440 R5440
• part type: Oscilloscope Tube

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• sold #: 13
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• prices: $250.00–$298.00
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• started: march 4, 2026

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