7285 EICO Dynamic Conductance Tube Transistor Tester

Review EICO 667 Dynamic Conductance Tube And Transistor Tester Good Shape

The Eico 7285 667 Dynamic Conductance Tube Tester is a versatile and powerful diagnostic tool designed specifically for testing vacuum tubes, particularly those with dynamic conductance characteristics. This tester is a must-have for electronics technicians, repair shops, and hobbyists working on vintage or high-performance audio equipment, as well as radio and television sets.

The Eico 7285 667 tester utilizes a dynamic conductance bridge circuit to measure the conductance of vacuum tubes in both the grid-cathode and plate-cathode configurations. This allows for a more comprehensive evaluation of tube performance, revealing critical information such as grid leakage, plate resistance, and grid-plate capacitance. The tester also includes a grid current test function, enabling the measurement of current flowing through the grid circuit.

The instrument's design is both user-friendly and rugged, with a clear and easy-to-read analog display that shows both peak and average readings. The tester also features a built-in zero adjustment function, ensuring accurate and reliable test results. The device is housed in a sturdy metal case with a protective rubberized coating, providing excellent durability against shock and vibration.

The Eico 7285 667 Tube Tester is compatible with a wide range of vacuum tubes, including triodes, tetrodes, pentodes, and pentagrid converters. It can be used for testing both audio and power tubes, making it a valuable asset for diagnosing issues in various types of electronic equipment. The tester requires a 100-240V AC power supply, with a detachable power cord for added convenience.

In summary, the Eico 7285 667 Dynamic Conductance Tube Tester is a high-quality and versatile diagnostic tool that is essential for anyone working with vacuum tubes. Its advanced features, user-friendly design, and rugged construction ensure accurate and reliable test results, making it an indispensable addition to any electronics workbench.

The Eico 7285 667 is a dynamic conductance tube tester designed for testing vacuum tubes. Here are some pros and cons that may help you decide if purchasing this tester is right for you.

1. Versatility: The Eico 7285 667 can test various types of vacuum tubes, including power tubes, audio output tubes, and rectifier tubes.

2. Accuracy: This tester is known for its high level of accuracy, making it a reliable tool for diagnosing tube issues.

3. User-Friendly: The Eico 7285 667 has a simple and intuitive interface, making it easy for users of all skill levels to operate.

4. Durability: Eico testers are known for their robust construction, making the 7285 667 a long-lasting investment.

5. Bypass Function: The tester has a bypass function that allows it to test tubes that are still in circuit, saving time and effort.

1. Expensive: Compared to some other tube testers on the market, the Eico 7285 667 is on the pricier side.

2. Size and Weight: This tester is larger and heavier than some other options, making it less portable.

3. Limited Functionality: While the Eico 7285 667 is a powerful and versatile tester, it does not have some of the advanced features found on more expensive models.

4. Analog Display: The tester uses an analog display, which may not be as precise or easy to read as a digital display.

The Eico 7285 667 is a high-quality tube tester that offers accuracy, versatility, and durability. While it may be more expensive and less portable than some other options, its user-friendly interface and bypass function make it a worthwhile investment for those who need to test a variety of vacuum tubes.

If you are a professional technician, audio engineer, or hobbyist who needs to test a range of vacuum tubes, the Eico 7285 667 is a solid investment. Its accuracy, user-friendliness, and bypass function make it a valuable tool for diagnosing and repairing tube issues. However, if you are on a budget or only need to test a few tubes occasionally, there may be more affordable options available that would better suit your needs.

Details:

Its robust design and precision engineering make it an ideal tool for tube amplifier enthusiasts vintage audio collectors. The Eico 667 is a vintage dynamic conductance tube and transistor tester that has been crafted in the USA. The Eico 667 is a testament to the era when quality and reliability were hallmark of American craftsmanship.

specifications vactubetest:

• brand: Eico
• mpn: 7285
• part type: Tester Tube
• unit type: Unit
• country/region of manufacture: United States

returns vactubetest:

• policy: no returns

payments vactubetest:

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

general vactubetest:

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

shipping vactubetest:

• carrier: usps
• class: standard
• service: usps ground advantage
• transit: 5-13 days
• type: calculated

offer vactubetest:

• availability: in stock
• started: may 18, 2025
• best offers: true
• in stock #: 5
• prices: $194.99–$299.99
• item condition:
  • Used
  • For parts or not working
  • Seller refurbished
  • Good
• sold #: 15
• options: ship-to-home

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• # reviews: 4
• city: lake havasu city, arizona
• rating: 100.0%