


| Brand | HICKOK |
|---|---|
| Manufacturer Part Number | 123-A |
| Part Type | TESTER TUBE |
| Unit Type | UNIT |
| Country/region Of Manufacture | UNITED STATES |
The Hickok 123-A Tube Tester is a versatile and reliable instrument designed for the precise testing and diagnosis of vacuum tubes used in various electronic devices. This tube tester, manufactured by the renowned Hickok Instruments, is a go-to solution for electronics technicians, radio hobbyists, and repair professionals.
The Hickok 123-A Tester is a manual tube tester that utilizes theGrid Discharge Method, which offers superior accuracy and allows the measurement of both DC and AC tube characteristics, including plate and grid current, plate resistance, grid leakage, grid voltage, and tube filament current. With a wide range of test voltages and currents, it can test virtually any type of vacuum tube regardless of its technical specifications.
The test instrument boasts an intuitive and user-friendly interface. It features an easily readable analog dial for quick, at-a-glance results and a digital display to provide precise numerical data. In addition, the tester incorporates an automatic incrementing feature when performing AC current measurements, which significantly increases overall efficiency and accuracy.
The Hickok 123-A Tube Tester is compact, making it a convenient choice for both bench-top use and portable applications. It comes equipped with a built-in storage compartment for spare tube filaments and an easily accessible filament fuse. The tester's accessible design also offers simple component replacement, facilitating longevity and ensuring many years of operation.
The instrument boasts rugged construction with a heavy-duty steel casing, which withstands the inevitable wear and tear of daily use. The Hickok 123-A Tube Tester's durability is further enhanced by its well-shielded electrical components, which protect it against potential interference from external electromagnetic signals.
The introduction of the Hickok 123-A Tube Tester revolutionized the vacuum tube testing landscape and remains a trusted and valuable tool for electronics professionals. With its accuracy, versatility, and rugged build, it's the perfect solution for those who rely on precise vacuum tube testing for their businesses or hobbies.
The Hickok 123-A tube tester is a popular choice amongst electronics enthusiasts for its ability to test hollow cathode and vacuum tubes. For those considering purchasing this instrument, this analysis offers an unbiased assessment of its advantages and disadvantages:
Advantages:1. Versatile: The Hickok 123-A tube tester is capable of testing various types of tubes, including triodes, tetrodes, pentodes, and pentagrid converters, making it a versatile investment for hobbyists and technicians.
2. Thorough Testing: It provides comprehensive testing, checking parameters such as input and output resistance, plate voltage and current, grid leakage resistance, grid current, and pressure test.
3. User-Friendly: Its simple design allows for easy operation, making it a good choice for both beginners and experienced users.
4. Durable: The unit is known for its robust build quality, which provides long-lasting performance.
5. Accurate: The Hickok 123-A tube tester is renowned for its high accuracy.
Disadvantages:1. Limited Functionality: Compared to more advanced testers, the 123-A model may lack certain features such as the ability to test rectified AC voltages, making it less suitable for advanced projects.
2. Bulky: Due to its vintage design and the requirement to accommodate various test probes, the Hickok 123-A tube tester is a relatively large and bulky piece of equipment.
3. Lack of Automation: Unlike modern digital testers, the Hickok 123-A model requires manual operation for each test, which can be time-consuming for large batches of tubes.
Conclusion:The Hickok 123-A tube tester offers a high degree of versatility and thoroughly tests various tube parameters, making it an excellent investment for those focused on vacuum and hollow cathode tubes. Despite some limitations, its strong build quality and user-friendly design make it a reliable option for electronics enthusiasts and technicians.
Recommendation:Overall, the Hickok 123-A tube tester is an excellent device for individuals who require a high-quality vacuum and hollow cathode tube tester. It delivers accurate test results efficiently and offers a durable build quality. Those in need of testing rectified AC voltages or seeking automation might wish to consider more advanced digital testers. However, for those primarily focused on vacuum and hollow cathode tubes, the Hickok 123-A tube tester remains a recommended choice.
I plugged in a 6l6 tube and the matching punch card for photos. I inherited it from a retired engineer in about 1999 and used to repair some guitar amps. The tube is not included. It has been in storage since that time.
I kept it under cover, so is in reasonable shape but sold as-is. This Hickok card-mastic tester from 1958 comes complete with the calibration cards and a large set of punch.
