The Power Design 1556B is a regulated high-voltage DC power supply engineered for precision electronic applications requiring stable, calibrated output. It delivers continuously adjustable DC voltage via front-panel potentiometer control and dual-scale analog metering for real-time voltage or current monitoring. The unit serves industrial equipment, automation systems, and custom electronics projects demanding reliable power delivery with tight regulation and minimal ripple.
Technical Specifications
• Output Type: DC (regulated)
• Voltage Control: Continuously adjustable via front-panel potentiometer
• Metering: Dual-scale analog meter with toggle switch for voltage/current selection
• Calibration: Calibrated DC source with accuracy better than 0.25% below 250V
• Stability: 0.005% per hour (typical for precision models)
• Ripple and Noise: 5 mV P-P (typical for related precision models)
• Input Power: 105-125 VAC or 210-250 VAC, 47-440 Hz
• Protection: Overload and short-circuit protection; front-panel toggle switch safeguards metering circuit during fault conditions
• Output Connectors: Rear-panel voltage connectors with status indication
– Key Features
• Precision regulation for calibrated output stability
• Dual-scale metering accommodates wide voltage and current ranges
• Continuously variable output voltage adjustment
• Built-in protection against overload and short-circuit faults
• Compact benchtop design with tilting bail for convenient viewing
• Rear-panel indicator lamp signals active output connection state
– Typical Applications
• Precision industrial equipment commissioning and troubleshooting
• Automated test and measurement systems
• Research and development of high-voltage electronic circuits
• Equipment calibration and validation
– Compatibility & Integration
The 1556B accommodates standard 105-250 VAC input and accepts dual input frequency ranges (47-440 Hz), enabling operation across global power standards. Rear connectors support parallel connection configurations. Optional rack-mounting adapters available for integration into system racks.











