The 55-5711 is an oscilloscope with a frequency bandwidth of DC to 100 MHz that can display 8 traces on 4 channels. The SS~5711 is useful in a wide range of applications for not only production lines and maintenance and service purposes but also for the research and development of a variety of electronic devices. The features of the SS-5711 are as follows: 'In addition to display of 8 traces on 4 channels. the SS-5711 has an ADD function for measuring the sum of two signals and CH 2 POLAR for measurement of the difference between two signals. • Both CH 1 and CH 2 have a high deflection factor of 1 mV Idiv (in the x5 MAG function). which permits accurate measurement of voltages. · The horizontal deflection system has sweep rates up to 2 nsec/div (in the xl0 MAG function Iso that even highspeed phenomena can be measured with accuracy. • The SS-5711 has delayed sweep. single sweep. AL T sweep, and X-V operation functions, and a TV synchronizing signal separator circuit so that television and other composite video signal waveforms can be observed.