EICO HF-20 VINTAGE TUBE AUDIO AMPLIFIER – SERVICED – CLEANED – TESTED. THIS VINTAGE TUBE AMPLIFIER WORKS GREAT AND IS IN EXCELLENT CONDITION INSIDE AND OUT, ESPECIALLY FOR IT’S AGE. WE REPLACED MANY DEFECTIVE CAPACITORS AND OTHER DEFECTIVE COMPONENTS. REPAIRED ALL POOR SOLDER CONNECTIONS. CLEANED ALL CONTROLS AND SWITCHES. WE HAVE BEEN IN BUSINESS FOR OVER 60 YEARS REPAIRING VINTAGE AUDIO EQUIPMENT.