TV-7U SIGNAL CORPS HICKOCK Military Tube Tester Cosmetic

Review SIGNAL CORPS HICKOCK Tv7/u Vintage Military Tube Tester In Excellent Cosmetic Cond. Works Read

Signal Corps Hickok TV-7U Military TV-7/U Tube Tester

The Signal Corps Hickok TV-7U Military TV-7/U Tube Tester is a versatile and essential piece of equipment for technicians and engineers working with vacuum tubes, particularly those in military, broadcast, and radio communication applications. This tube tester is a direct descendant of the legendary Hickok 7211 and 7221 models, which have been trusted for decades for their accuracy and reliability.

The TV-7U tube tester features seven separate test functions designed to provide comprehensive analysis of various vacuum tubes, including triodes, tetrodes, pentodes, and beam power tubes. These tests include:

1. Plate Current: Measures the amount of current flowing through the plate of the tube, which is crucial for determining its overall health and performance.

2. Grid Leak: Detects any leakage in the grid circuit, which can impact tube stability and efficiency.

3. Grid Voltage: Measures the voltage applied to the grid of the tube, which is essential for proper tube operation.

4. Cathode Voltage: Measures the voltage of the cathode, which can indicate issues related to heating, filament voltage, or defective components.

5. Anode Voltage: Measures the voltage across the anode, which is important for evaluating the overall performance of the tube.

6. Grid Voltage-Plate Current Characteristics: Provides a graphical representation of the relationship between grid voltage and plate current, which can help identify any non-linearities or abnormalities in tube behavior.

7. Microvolt Amplifier: Sensitively measures very small changes in plate current, making it ideal for testing low-current tubes or detecting subtle issues.

The TV-7U tube tester boasts a user-friendly design, with clear, easy-to-read analog and digital displays, and intuitive controls. Its rugged construction, with a durable metal casing and robust components, ensures that it can withstand the rigors of field use. Additionally, the tester includes a built-in power supply, eliminating the need for an external power source.

Despite its industrial heritage, the Signal Corps Hickok TV-7U Military TV-7/U Tube Tester is not just for military applications it is an invaluable tool for any technician or engineer working with vacuum tubes in broadcast, radio communication, or other industries where tube testing and maintenance are essential. With its comprehensive test capabilities, rugged design, and user-friendly interface, the TV-7U is a must-have addition to any test equipment arsenal.

Buying a Signal Corps Hickok TV-7U military TV-7/U tube tester (hereafter referred to as the Hickok Tester) can be a valuable addition for those who work with or collect vintage television tubes. Here are some pros and cons to consider before making a purchase:

1. Accurately tests various types of vacuum tubes used in television sets.

2. Can save time and resources compared to sending tubes out for testing.

3. Provides detailed test results, including tube bias and grid leakage.

4. Portable design makes it easy to use in various locations.

5. Has a historical significance as a military-issued piece of equipment.

6. May increase the value of a vintage television collection.

1. Can be expensive, especially if in good condition or fully restored.

2. Requires some technical knowledge to use effectively.

3. May need regular maintenance and calibration to ensure accurate results.

4. Some components, such as the transformers, can be heavy and require careful handling.

5. Size and weight can make it difficult to transport, especially for long distances.

In conclusion, the Hickok Tester is a valuable tool for those who work with or collect vintage television tubes. Its ability to accurately test tubes and provide detailed test results makes it an essential piece of equipment. However, its high cost, technical complexity, and size can make it a less practical choice for those with limited resources or space.

If you are serious about working with or collecting vintage television tubes, the Hickok Tester is definitely worth considering. However, it's important to do your research and ensure that you are getting a good deal, especially if you plan to restore a unit that is not in good condition. Additionally, be prepared to invest the time and resources necessary to learn how to use the tester effectively and maintain it properly.

If you have the budget, technical expertise, and a genuine interest in vintage television tubes, the Hickok Tester is a worthwhile investment. It can save you time and resources in the long run and provide you with valuable insights into the condition and performance of your tubes. However, if you are just starting out or have limited resources, it may be worth exploring other, more affordable options for testing and diagnosing tube issues.

Details:

Shipping is calculated for FedEx ground. The last photo shows where I set the line adjustment to test accurately. It reads approximately 5% low according to the 6l6 bogey tube I purchased a while back which is tested on an expertly calibrated tv7 tester. So, having it calibrated immediately is not absolutely necessary as you can get by fine temporarily using the offset method I mentioned.

While experimenting with the bogey tube I did learn that could set line adjustment at 62.5 instead of 60.0 and then it would test right on money. All functions are very nice and smooth. The only thing it needs is a minor calibration. This is an excellent working vintage military TV-7U tube tester.

specifications vactubetest:

• brand: Signal Corps Hickock
• mpn: Tv-7u
• model: Tv7u Tv-7u
• part type: Tester Tube Work
• country/region of manufacture: United States

returns vactubetest:

• policy: no returns

seller vactubetest:

• city: lufkin, texas
• # reviews: 1427
• rating: 99.7%

shipping vactubetest:

• carrier: fedex
• transit: 5-12 days
• class: standard
• type: calculated
• service: fedex ground / fedex home delivery

general vactubetest:

• category: Business & Industrial > Test, Measurement Inspection > Calibrators > Tube Testers

offer vactubetest:

• options: ship-to-home
• started: august 26, 2025
• availability: in stock
• sold #: 19
• prices: $28.00–$44.98
• item condition:
  • New
  • Used
  • Open box
• in stock #: 5

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