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 meter – replaced damaged meter.
- New power cord – replaced vintage cord with a modern polarized cord for safety
- New Power Switch – don’t have to do this very often
- 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 – Octal, 9-pin, and 7-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-pin, 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 and deck shows a lot of wear. 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 $625 plus shipping to the lower 48 states only because of the weight.
Contact Me if you are interested in this tube tester.
