Tektronix 2 channel digital storage oscilloscope tbs1000b edu series tektronix tbs1202b the tektronix tbs1202b is a 2 channel digital storage oscilloscopes from the tbs1000b series this oscilloscope will provide you with affordable performance in a compact design the tbs1202b is the only 2 channel oscilloscope in its class that is designed for extensive monitoring and analysis activities versatile features like 34 automated measurements up to 200mhz bandwidth limit testing data logging