The Agilent/Keysight 6428B is a dual-output DC power supply engineered for laboratory and industrial electronic testing, development, and manufacturing applications. It delivers precise voltage and current control with stable, accurate power delivery across two independent or linked outputs. The instrument supports auto-series operation to double voltage capability, auto-parallel operation to double current capacity, and auto-tracking to synchronize the second output with the first. Operating from 0 °C to 55 °C, the 6428B combines low ripple and noise performance with tight load and line regulation, making it suitable for circuits and devices requiring dependable DC power.
Technical Specifications
• Output voltage: 0–50 V per output
• Output current: 0–1 A per output
• Ripple and noise (20 Hz to 20 MHz):
– Constant voltage mode: 250 µV rms, 4 mV peak-to-peak
– Constant current mode: 250 µA rms, 2 mA peak-to-peak
• Load regulation: 0.01% + 1 mV (CV), 0.01% + 250 µA (CC)
• Line regulation: 1 mV (CV), 100 µA (CC)
• Operating temperature: 0 °C to 55 °C
• Weight: 11 kg (24 lb)
– Key Features
• Dual independent or linked power outputs
• Auto-series configuration doubles available voltage
• Auto-parallel configuration doubles available current
• Auto-tracking synchronizes second output to first output settings
• Constant voltage and constant current operating modes
– Typical Applications
The 6428B serves development, test, and production environments where stable DC power sources are essential. Its flexible output configurations address diverse circuit powering requirements, from low-voltage precision work to higher-current parallel applications.
– Compatibility & Integration
Designed for use in laboratory and industrial settings, the 6428B integrates into benchtop test stations and manufacturing test setups. The instrument is discontinued; operating and service manual 06428-90001 (January 1966) is available for reference.
