Tektronix 2245A 100 Mhz, four channel, dual sweep, microprocessor controlled analog oscilloscope. 5″ CRT display with voltage and time cursor measurement. Two channels have 2 mV to 5 V vertical sensitivity per division in 11 ranges; two channels have 0.1 V and 0.5 V sensitivity per division only. Horizontal time base has single, dual, or delayed sweeps from 0.5 to 20 nS per division. On-screen vertical and horizontal cursors provide accurate voltage, time, and frequency measurement displayed on the CRT. One-button Auto Setup; menu-driven service mode configures readout displays, internal calibration, and servicing diagnostics. Case and front panel in excellent condition, includes front panel cover. Power requirement 90-250 VAC 48-440 Hz. (Q2Q) Used checked.