For sale is reprint of EICO Model HF-20 20 Watt High Fidelity Amplifier Operating/Assembly Manual . Manual is 10 Pages long, Assembly Instructions are 12 pages long. Manual includes part list, 3 Page addenda and 11×17″ foldout schematic.
Most of HF-20 Amps were sold as kits. Assembly instructions contain part list and assembly diagrams.