For sale is reprint of EICO Model 377 Sine and Square Wave Audio Generator  Construction Manual. Manual is 8 Pages long and includes circuit diagram, Dated 1952. Sections include: General Instructions, Assembly. Manual includes diagram and part list. Most of 377 Generators were sold as kits, I have Instruction manual in my Ebay store.  Real Paper Manual. Quality Printed and Comb Bound. Printed from available copy or scanned from original at 600dpi, restored in Photoshop, Laser printed on premium acid free paper, they will serve for years. Most manuals Include Circuit Diagram. Cover page printed on Cover Stock.