For sale is reprint of Hickok Hickok 288X Universal Crystal Controlled Signal Generator Manual. Manual is 22 pages long and includes two 11x17 foldouts of Circuit Diagram and Signal Output Table. Dated 1947. Manual is for model 288X but it also covers Signal Generators model 277 and 277X. Manual comes with part list and pictures of bottom and top of chassis.  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.