The Keysight (Agilent) 1743A is a 100 MHz dual-channel analog oscilloscope engineered for general-purpose testing and troubleshooting across educational and industrial environments. This discontinued instrument delivers reliable waveform measurement and analysis through a straightforward control interface and clear CRT display.
Technical Specifications
• Bandwidth: 100 MHz
• Channels: Dual-channel configuration
• Rise Time: ≤3.5 ns
• Vertical Deflection Factor: 5 mV/div to 20 V/div with 3% accuracy
• Main Time Base: Dual time base capability with sweep speeds to 5 ns/div
• Calibrated Time Base Ranges: 23 settings
• CRT High Voltage: 15 kV
• Signal Delay Line: Included
• Power Requirements: 100/120/220/240 V, 48-440 Hz, 100 VA
• Weight: 20.00 lbs
– Key Features
• Dual time base architecture enables simultaneous observation of fast and slow signal components without reconfiguration.
• Integrated signal delay line preserves leading edge detail in fast transient measurements.
• 23 calibrated time base ranges provide measurement flexibility from microsecond to nanosecond scales.
• Vertical resolution spans four decades—5 mV/div to 20 V/div—accommodating both small-signal and power circuit analysis.
• Universal AC input (100-240 V, 48-440 Hz) supports global deployment.
– Typical Applications
• Analog circuit characterization and debugging
• Educational laboratory instruction in analog electronics and measurement techniques
• General-purpose waveform observation and DC parameter verification
– Compatibility & Integration
Operating and Service Manual (Part Number 01743-90905, May 1978 revision) is available for reference. This product is discontinued and no longer manufactured by Keysight.

















