Hickok 534B tube tester, fully restored and calibrated with good cosmetics. This unit offers dependable, accurate tube testing performance. This unit has been sold.
Tag: Tube Tester Calibration
Prototype Precision 10-12 Tube Tester – SOLDPrototype Precision 10-12 Tube Tester – SOLD
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Prototype Precision 10-12 tube tester, fully restored and calibrated with excellent cosmetics. This unit represents a rare, accurate example of Precision’s development models. This unit has been sold.
Hickok 600A Tube Tester For Sale – SOLDHickok 600A Tube Tester For Sale – SOLD
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Hickok 600A tube tester, fully serviced and calibrated. The case shows wear but the tester performs to factory specifications. This unit has been sold.
Hickok 539C Tube Tester with EnhancementsHickok 539C Tube Tester with Enhancements
6 Comments
Hickok 539C tube tester with solid-state rectifiers, bias fuse, and balanced transformer enhancements for improved reliability and protection. Fully restored and calibrated.
Hickok 532 Tube Tester For Sale – SOLDHickok 532 Tube Tester For Sale – SOLD
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Hickok 532 tube tester, fully serviced and calibrated. The case shows wear but the tester performs to factory specifications. This unit has been sold.
Hickok 600A Tube Tester for Sale – SOLDHickok 600A Tube Tester for Sale – SOLD
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Hickok 600A tube tester, fully serviced and calibrated. The case is badly worn but the tester performs to factory specifications. This unit has been sold.
Hickok 534 Tube Tester with Added OptionsHickok 534 Tube Tester with Added Options
4 Comments
Hickok 534 tube tester with added plate current test points and bias fuse for enhanced diagnostics and circuit protection. Fully restored and calibrated.
Weston 981 Tube TesterWeston 981 Tube Tester
3 Comments
Weston 981 mutual conductance tube tester, known for its robust construction and precise measurements. Fully restored and calibrated.
Hickok 752A Tube TesterHickok 752A Tube Tester
5 Comments
Hickok 752A mutual conductance tube tester, reliable and accurate with a large analog meter. Fully restored and calibrated.
Hickok 539C Tube Tester with Digital MetersHickok 539C Tube Tester with Digital Meters
6 Comments
Hickok 539C tube tester upgraded with digital meters for improved readability while retaining original mutual conductance circuitry. Fully restored and calibrated.