made only in 1960 I believe,this USA made Ampeg Rhapsody 435s all valve 2x12" is rare as hens teeth,maybe the only one on British soil! Has true Vibrato like a Magnatone but this part of the amp isn't working perfectly and will need looking at.other than the Vibrato,the amp is working perfectly. Uses 10 valves which is a lot for what is probably around a 30 watt amp!