Vintage Jackson Tube Tester Model 648 W/tube Data & Instructions

US $130.00

  • Carlisle, Pennsylvania, United States
  • Aug 29th
It is uncertain if this issue is caused by the lubricant or operator error. The JACKSON Tube Tester Model 648, with included Tube Data and Instructions, is a vintage device that provides reliable readings. Refer to the attached photos and don't hesitate to ask any further inquiries. Despite the issue with the tubes, the case of the tester is sturdy and has intact latches and handle, although the covering has some flaws. Although the tester is functional, some tubes that are confirmed to be good are producing negative results. Upon powering the unit, the needle on the tester moves to the bad side, and while the pushbuttons were initially not staying down, a spray lubricant was applied to improve their performance (there may still be an odor).
Tester is not working properly. Check photos and full description.
Model JACKSON 648
Brand Jackson

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