Very nice Jackson 648S Tube Tester in good condition. Pictures tell the story. I put in a very good 6L6GC, it tested very good. I put in a weak EL34, it tested weak.Roll chart rolls and meter works smoothly. Tester comes with lots of docs. It has sockets for the newer tubes, even Magnoval.This tester might be good for testing high power sweep / transmitter tubes.Tubes shown are for demo and don\'t come with sale. Item might ship other than FedEx depending on destination. Quoted shipping won\'t be exceeded.If you have questions, please ask. I\'ll do my best to answer.

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