Tektronix TDS644B 4 Channel 500MHz Digital Color Oscilloscope

Tektronix TDS644B 4 Channel 500MHz Digital Color Oscilloscope. Unit powers on and passes self-test. All 4 channels tested O.K. No manual, software, probes, cover or other accessories. As shown. Purchaser responsible for any calibration, certification or maintenance.

The Tektronix TDS644B is a high-performance 4-channel digital real-time oscilloscope, offering a 500 MHz bandwidth and 2.5 GS/s sampling rate per channel. Renowned for its precision and reliability, it caters to professionals in electronics design, signal analysis, and advanced diagnostics.

🔧 Key Features

• Bandwidth: 500 MHz

• Sampling Rate: 2.5 GS/s per channel

• Channels: 4

• Vertical Resolution: 8-bit (enhanced to >11 bits with averaging)

• Record Length: Up to 15,000 points per channel

• Vertical Sensitivity: 1 mV/div to 10 V/div

• Time Base Range: 500 ps/div to 5 s/div

• Input Impedance: 1 MΩ // 10 pF or 50 ohm

• Display: Color VGA

• Interfaces: GPIB, RS-232, Centronics, VGA

• Advanced Functions: Waveform math, FFT, integration, differentiation, waveform pass/fail testing

• Storage: 3.5″ DOS-format floppy drive