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Hickok Model 533A MU tube tester:
$237.50
Hickok tube tester model 533A. Don’t know much about it, but it does power up, red light comes on. Please assume it needs work or calibration when considering your offer. I do not guarantee it functions 100%. Scrolling tube info chart turns smoothly. Knobs and buttons operate nicely. Please see photos for condition. Carry handle is broken. Operating instructions included.