Check the listing for details. EICO 720 90-Watt CW Transmitter Manual. Condition: Brand New. Listed at 10.99 USD. For sale is reprint of EICO Model 720 90 Watt CW Transmitter manual.. Manual is 8 Pages long and include 11x17" foldout of Circuit Diagram. Manual sections include: General Description, Specifications, Circuit Description, Function of Controls, Operating Instructions, Accessory Connections, Maintenance. Maintenance section contains tube socket Voltage/Resistance chart, detailed part list and top view diagram. This manual does not include part location-assembly instructions. Assembly manual is a separate publication. 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 foldout of Circuit Diagram. Cover page printed on Cover Stock.