For sale is reprint of Hickok 540 Tube Tester manual. Manual 7 pages long and includes Circuit Diagram.
Manual comes with 4 pages of Ballast Tube Data, Part list and Operating Instructions. Manual is dated 1944.
Real Paper Manual. Quality Printed and Comb Bound. Printed from available copy or scanned from original at 800dpi, restored in Photoshop, Laser printed on premium acid free paper, they will serve for years. Most manuals Include foldout of Circuit Diagram. Cover page printed on Cover Stock.