The Hickok 600A is a classic mutual conductance tube tester known for its reliability, accuracy, and ease of use. I restored and calibrated this tester to ensure dependable performance and long-term stability. It’s an excellent choice for checking transconductance, or general service work. . It also comes with a one-year warranty for your peace of mind. See warranty details here.
Restoration:
- New power cord – upgraded to a modern polarized cord for safety
- Solid-state rectifier – replaced the original #83 tube for improved reliability and reduced transformer stress
- Capacitors replaced – all capacitors prone to failure replaced
- Resistors replaced – out of spec components affecting calibration replaced
- Socket savers – added for the Octal and 9-pin sockets to prevent wear
- Calibration – fully calibrated to factory specifications for accurate Gm and readings
- Grid and Plate lead – replaced damaged lead wire
Key Features:
- Tests newer Octal, Loctal, 7-pin and 9-pin miniature, and older style 4-pn, 5-pin, 6-pin and 7-pin tubes.
- Tests transconductance (Gm) and shorts
- Compact, easy-to-use design ideal for bench or field service
- Professionally restored and calibrated for consistent, accurate results
- Includes socket savers for the most commonly used sockets
Condition:
This Hickok 600A is in excellent electrical condition following full restoration and calibration. The case shows normal wear consistent with age. It remains solid and functional. All controls and switches operate smoothly, and all functions have been verified.
This Hickok 600A is ready for service and represents a dependable, well-calibrated tester at an excellent value.
The manual is available to download here
This Hickok 600A tube tester is $725 plus shipping to the lower 48 states only because of the weight.
Contact Me if you are interested in this tube tester.
