For sale is reprint of Hickok 534B Tube Tester manual. Manual is 12 pages long and includes 11×17″ foldout of Circuit Diagram.
Manual comes with 3 pages of Ballast Tube Data, Part list and Operating Instructions. Also Included are bulletins T-101. T-103, T-123 and T-127 with additional tube test data. Manual is dated 1945.