Hickok 534 tube tester with added plate current test points and bias fuse for enhanced diagnostics and circuit protection. Fully restored and calibrated.
Category: Tube Testers
Restored and Calibrated Tube Testers.
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.
Precision 912P For Sale – SOLDPrecision 912P For Sale – SOLD
4 Comments
Precision 912P tube tester, fully restored and calibrated. The wood case is in excellent condition. This unit has been sold.
Hickok 6000A Tube TesterHickok 6000A Tube Tester
5 Comments
Hickok 6000A tube tester with good cosmetic condition. Fully restored and calibrated for reliable tube testing.
Hickok 750 Tube TesterHickok 750 Tube Tester
4 Comments
Hickok 750 mutual conductance tube tester, known for accuracy and durability. Fully restored and calibrated with good cosmetics.
Precision 10-12 Tube TesterPrecision 10-12 Tube Tester
0 Comment
Precision 10-12 tube tester, later model with improved circuitry. Wood case is in excellent condition. Fully restored and calibrated.
Precision 10-12 Solid State PrototypePrecision 10-12 Solid State Prototype
0 Comment
Precision 10-12 solid-state prototype tube tester, a rare development model. Fully restored and calibrated with good cosmetics.
Precision 10-12 Tube TesterPrecision 10-12 Tube Tester
0 Comment
Precision 10-12 tube tester, early model with excellent wood case. Fully restored and calibrated for accurate testing.