For sale is reprint of National HRO-7 Radio receiving Equipment Manual. Manual is 25 pages long.  Manual includes many wiring diagrams, illustrations and part location charts. Maintenance section also has  Alignment procedure for coil sets A-F and tube socket voltage chart. Must for every owner of this highly collectable receiver. 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. Cover page printed on Cover Stock.