For sale is reprint of National Horizon 10 HiFi Amplifier Manual. Manual is 8 pages Includes Part List and Circuit Diagram. Manual also includes 3 Service Bulletins Hi-Fi-7, Hi-Fi-8 and Hi-Fi-9. 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 Circuit Diagram. Cover page printed on Cover Stock. FREE shipping IN US.