Model: TDS744A. The TDS744A is a high bandwidth, high resolution digitizing oscilloscope. Make: Tektronix. Bandwidth: dc to 500 MHz. 4 input channels. Sample rate: 2 GSa/s (1 channel). Weight: 27 lb; Size: 193 mm (7.6 in)H x 445 mm (17.5 in)W x 432 mm (17.0 in)D.