The EICO 628 tube tester is a reliable, vintage emissions-style tester perfect for audio techs, restorers, and collectors. With its clean roll chart, original EICO box, and fully verified operation, this vintage EICO tube checker offers dependable performance for testing a wide range of tubes. It also comes with a one-year warranty for your peace of mind. See warranty details here.
Restoration:
- Capacitors Replaced – all failure-prone capacitors replaced
- Power Cord – new power cord for safety
- Resistors Checked – key resistors verified and replaced if out of tolerance
- Verification and Test – fully tested with known quality tubes (no calibration required on this model)
Key Features:
- Dynamic Emissions Testing – simple, reliable performance for go/no-go tube checks
- Tube Compatibility – tests most common Octal, Loctal, Compactron and 7-, 9-pin tubes
- Shorts Indicator – check for shorts
- Compact, Bench-Friendly Design – small footprint makes it easy to use or store
- Analog Meter – clear merit scale for quick results
- Line Voltage Adjustment – helps maintain accurate test conditions
- Internal Roll Chart – smooth and clean roll chart for quick tube setup
Condition:
I have fully restored and verified this tube tester. All failure-prone capacitors replaced and the unit verified with known-good tubes. Includes updated power cord. Also includes the original EICO box.
The EICO 628 is a dependable emissions-style tester perfect for audio techs, restorers, and collectors looking for a straightforward, reliable unit without the complexity of more advanced testers.
The roll chart is clean and complete. The case and faceplate show only light wear, consistent with careful storage over the years.
The manual is available to download here
The EICO 628 tube tester is $385 with free shipping to the lower 48 states.
Contact Me if you are interested in this tube tester.
