TV-7A-U HICKOK Military Tube Tester Mutual Conductance

Review HICKOK Tv-7a/u Military Tube Tester Mutual Conductance Test

The Hickok TV-7A/U Military Tube Tester is a high-performance and versatile instrument designed for the precise measurement and diagnosis of vacuum tubes commonly used in military, aerospace, and industrial applications. This tester is an updated version of the classic Hickok TV-7A, offering enhanced features and improved accuracy.

The TV-7A/U tester is capable of measuring the mutual conductance (gm), plate resistance (Rp), grid leak resistance (Rg), grid leak current (Ig), plate current (Ip), and plate voltage (Vp) of various types of vacuum tubes, including triodes, tetrodes, pentodes, and beam power tubes. It can also test rectifiers and vacuum relays.

This instrument features an easy-to-read, backlit, 5-digit, BCD-driven, LED display, which provides accurate and clear readings. The tester is designed with a simple and intuitive user interface, allowing for quick and easy operation. It includes an automatic test sequencer, which enables users to perform multiple tests on a single tube with the push of a button.

The Hickok TV-7A/U Military Tube Tester is built with high-quality components and is ruggedly constructed to withstand the demands of military and industrial environments. It is designed to operate on a standard 100-240V AC power supply and features a built-in battery backup, ensuring uninterrupted operation even during power outages.

The tester also includes a variety of test accessories, such as probe tips, test adapters, and a test lead set, allowing for a wide range of tube testing applications. It also features a built-in self-diagnostic function, which ensures the accuracy and reliability of the instrument.

In summary, the Hickok TV-7A/U Military Tube Tester is a must-have tool for any military, aerospace, or industrial electronics technician. It offers high accuracy, versatility, and ease of use, making it an essential instrument for the diagnosis and repair of vacuum tubes in various applications.

The Hickok TV-7A/U Military Tube Tester is a classic piece of test equipment used for measuring the mutual conductance of vacuum tubes. Here are some pros and cons that might help you decide if this tester is the right choice for your needs:

1. Accurate and reliable: The Hickok TV-7A/U is known for its high level of accuracy and reliability. It is still used by many repair shops and technicians today due to its ability to provide precise readings.

2. Versatile: This tester can test a wide range of vacuum tubes, including triodes, tetrodes, pentodes, and beam power tubes. It can also test various types of tubes such as audio, RF, and power tubes.

3. Durable: The Hickok TV-7A/U is built to last. Its sturdy construction and high-quality components make it a long-lasting investment.

4. Easy to use: The tester is relatively easy to use, even for those who are not familiar with test equipment. It has clear and easy-to-read dials and a simple operating procedure.

5. Historical significance: The Hickok TV-7A/U is a piece of history. It was first introduced in the late 1940s and has been in continuous production since then. It is a collector's item for those who appreciate vintage electronics.

1. Expensive: The Hickok TV-7A/U is not an inexpensive piece of equipment. It can be quite costly, especially for those on a tight budget.

2. Bulky and heavy: The tester is quite large and heavy, making it difficult to transport or store easily.

3. Limited functionality: While the Hickok TV-7A/U is a versatile tester, it does have its limitations. It cannot test other types of electronic components, such as transistors or integrated circuits.

4. Requires maintenance: The tester requires regular maintenance to keep it in good working order. This can be time-consuming and may require some technical knowledge.

5. Outdated technology: The Hickok TV-7A/U uses vacuum tube technology, which is outdated compared to modern test equipment. This may make it less practical for those who work primarily with solid-state components.

In conclusion, the Hickok TV-7A/U Military Tube Tester is a high-quality, reliable, and accurate piece of test equipment that is still in use today. It is a valuable investment for those who work with vacuum tubes and appreciate historical electronics. However, it is also expensive, bulky, heavy, and requires regular maintenance. It may not be the best choice for those who work primarily with solid-state components or have a limited budget. Ultimately, the decision to buy a Hickok TV-7A/U depends on your specific needs and preferences. If you work with vacuum tubes and value accuracy, reliability, and historical significance, then this tester may be worth the investment. However, if you have limited resources or work primarily with solid-state components, there may be other test equipment that better suits your needs.

Details:

Power is not indicative of working. Listing is for one Hickok TV-7A/u military tube tester - 25006-pH-54-53 no power cord. As with any vintage item, please expect there to be wear, scuffs/scratches, odors,discoloration, rust, dust, signs of age, etc. Office reference: item #26-2009 pics are of actual item.

These items are vintage. They may have scuffs, scratches, discoloration, odors, rust, dust, signs of age. All knobs and switches turn freely. Please look closely at the pics.

Please see pics for the visual condition. And though I may have gotten anytime to power on, due the age, item could fail do so at any time. No guarantees. Here are some details: I noticed wires un soldered.

Sold in as is condition. Sold as networking - parts / repair project. No other testing done. As seen in pics.

Item does not come with anything else, unless noted in .

specifications vactubetest:

• brand: Hickok
• mpn: Tv-7a/u
• part type: Tester Tube
• country of origin: United States

shipping vactubetest:

• type: calculated
• class: economy, standard
• service: fedex ground economy, ups ground, usps ground advantage
• carrier: fedex, ups, usps
• transit: 4-8 days

returns vactubetest:

• policy: no returns

general vactubetest:

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

payments vactubetest:

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

offer vactubetest:

• best offers: true
• availability: in stock
• prices: $10.95–$39.99
• item condition:
  • Used
  • New
  • For parts or not working
  • Open box
• sold #: 8
• started: march 27, 2026
• in stock #: 5
• options: ship-to-home

seller vactubetest:

• city: grants pass, oregon
• rating: 100.0%
• # reviews: 1698