Fully rebuilt with all new capacitors, transistors and STK modules. AM/FM boards have been aligned using a Kenwood SG5150. This unit looks good and sounds good. It has more than enough power to fill a moderate room. All inputs and outputs have been tested including headphone out. I normally don't offer a 30-day return on 40 -year-old electronic gear, but I am confident there won't be a need. I only ship to the lower 48. Shipping included in price.