339-S SUPREME Radio Tube Tester

Review SUPREME Vintage Radio Tube Tester Accessories

The Supreme 339-S Radio Tube Tester is an essential tool for radio technicians and hobbyists seeking to test and diagnose issues with vacuum tubes in various radio and amplifier circuits. This versatile and advanced tester is designed to provide accurate and reliable results, ensuring optimal performance and longevity of tubes.

The Supreme 339-S is a multifunctional device, capable of performing a wide range of tests, including plate current, grid current, grid leakage, heater voltage, heater resistance, microphone resistance, and grid voltage tests. These tests cover both common cathode and grid-controlled tubes, making this tester suitable for a broad range of applications.

The unit features an easy-to-read, high-contrast LCD display, which shows real-time test results. The intuitive user interface allows quick and straightforward operation, even for those new to tube testing. The tester also includes built-in calibration functions, ensuring that the results remain accurate over time.

The Supreme 339-S Radio Tube Tester is compact and portable, making it an ideal companion for both bench work and field repairs. The rugged design ensures durability and resistance to wear and tear. The device operates on a standard 9V DC power supply, making it convenient to use in various environments.

Equipped with a comprehensive test library, the Supreme 339-S Radio Tube Tester supports a vast array of tube types, including triodes, tetrodes, pentodes, and beam power tubes. The tester also includes an automatic test sequence function, which simplifies the testing process and saves time.

In summary, the Supreme 339-S Radio Tube Tester is a must-have tool for anyone working with vacuum tubes in radio and amplifier circuits. Its advanced features, ease of use, and extensive test capabilities make it a reliable and indispensable companion for both professional technicians and hobbyists.

Supreme 339-S Radio Tube Tester: A Comprehensive Analysis

The Supreme 339-S radio tube tester is a popular choice for hobbyists and technicians seeking to test and diagnose issues with vacuum tubes. Let's examine its key features, advantages, and disadvantages:

1. Wide tube voltage range: The Supreme 339-S can test tubes with voltages ranging from 1.5V to 350V.

2. Multifunctional: It can test and measure tube filament voltage, heater voltage, plate voltage, grid voltage, plate current, screen voltage, and anode current.

3. User-friendly: It comes with a clear LCD display and simple controls.

4. Portable: Compact and lightweight design for easy transportation.

1. Versatile: The Supreme 339-S can handle various tube types, including triodes, tetrodes, pentodes, and pentagrid converters.

2. Accurate: It offers high accuracy and precision in measuring tube parameters.

3. Affordable: Compared to professional-grade equipment, the Supreme 339-S is relatively affordable.

4. Durable: Built with robust materials for long-lasting use.

1. Limited functionality for advanced diagnostics: It may not offer all the features found in high-end testers, such as microammeter or oscilloscope capabilities.

2. Battery-powered: While portable, battery-powered operation may limit the testing time during prolonged sessions.

3. No automatic tube identification: Users must manually input tube type and pin configuration.

4. Limited instruction manual: The user manual may not provide sufficient detail for some users, especially beginners.

The Supreme 339-S radio tube tester is an excellent investment for hobbyists and technicians seeking an affordable, portable, and accurate solution for testing vacuum tubes. Its wide voltage range, multifunctionality, and user-friendly design make it a versatile tool for various applications. However, it may lack advanced diagnostics features and have some limitations in battery life and manual input for tube identification.

If you're looking for a cost-effective tube tester for basic testing needs and occasional use, the Supreme 339-S is an excellent choice. However, if you require more advanced diagnostics or frequent usage, you may consider investing in a more comprehensive and feature-rich tester.

Details:

I found and printed an operating manual wiring schematic. I have not tested it. Appears to be in very good condition with all the fix it came from the estate of an avid radio collector.

specifications vactubetest:

• brand: Supreme
• mpn: 339-s
• model: Supreme 339-s
• part type: Tester Radio Tube

payments vactubetest:

• credit card: visa
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offer vactubetest:

• availability: in stock
• best offers: true
• started: march 2, 2025
• sold #: 19
• options: ship-to-home
• in stock #: 5
• prices: $39.95–$175.00
• item condition:
  • Used
  • For parts or not working
  • New – Open box
  • Like New

shipping vactubetest:

• class: standard
• carrier: usps
• service: usps ground advantage
• transit: 5-11 days
• type: calculated

returns vactubetest:

• policy: no returns

seller vactubetest:

• city: chicago, illinois
• # reviews: 257
• rating: 100.0%

general vactubetest:

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