Hickok 539B Tube Tester Operating Manual




For sale is reprint of Hickok 539B Tube Tester manual. Manual 12 pages long and includes 11″x17″ foldout of Circuit Diagram. 

Manual comes with 4 pages of Ballast Tube Data, Part list and Operating Instructions. Manual is dated 1955. Manual also includes 2 Bulletins. 3 pages of additional data for new Tube Types dated 1957.