Tube Testers Currently for Sale

These testers have NOT been serviced, but they work very well. They have been checked against several of my calibrated tube standards and the testers appear to be right on as far as calibration is concerned.

• Hickok 532 Dynamic Mutual Conductance Tube Tester - SOLD
• B&K 650 Dyna-Quik Tube Tester - SOLD

Updated 4/3/24