Mainframes 560

560First mainframe of the series
561Improved version with rectangular tube and inreased power supply
561BFull solid state mainframe
564First commertial bistabile storage oscilloscope
564BImproved bistabile storage oscilloscope
565Dual trace mainframe with build in timebases
567First digital readout / programmable oscilloscope
568Digital readout oscillscope with companion readout unit type 230