My father bought this new in 1973. It was carefully used (we kids were not allowed to touch it) and went into dry indoor storage in 2005. It comes with the original manual in mint condition. The unit is in excellent used condition and lights up when plugged in and all the dials work. However, I did not attach it to speakers or test the unit any further. It worked the last time it was hooked up to a stereo system. Thanks.