A friend who knows I mess around with vintage Sansui equipment gave me a Fisher 400 Tune O Matic this past week. I plugged it in, turned it on and got it to play on FM. I'm not too impressed with what I heard so I don't know if its supposed to sound that way (i.e. low end equipment) or if it needs some TLC. I never worked on tube equipment before I don't think I'm going to start now. What information is available on this unit?