HP Hewlett Packard 6114A Precision DC Power Supply 0-40V 2A Benchtop Lab

HP Hewlett Packard 6114A Precision DC Power Supply 0-40V 2A Benchtop Lab

The HP 6114A is a 40-watt precision benchtop DC power supply offering manually set, highly accurate output voltage across a continuously variable current range. It features a roller-digit thumbwheel voltage display with a dedicated Fine Adjust knob for precise setpoint dialing, a dual-scale analog panel meter switchable between volts and amperes, and built-in overvoltage protection. Output is available at the front-panel banana jacks or through the rear screw terminal block, which includes remote sense terminals (+S and −S) for load-lead compensation.

Specifications & What's Included

• Model: HP / Hewlett-Packard 6114A
• Power rating: 40W
• Output voltage range: 0–20V @ up to 2A; 20–40V @ up to 1A
• Output voltage accuracy: 0.025%
• Current control: continuously variable
• Operating temperature: 0–55°C
• Voltage setting: roller-digit thumbwheel display + Fine Adjust rotary knob
• Panel meter: dual-scale analog (Volts 0–50 / Amperes 0–2.4), front-panel Volts/Amps selector switch
• Overvoltage protection: yes — dedicated indicator lamp and control
• Front output connectors: three banana jacks (+, −, chassis ground); rated ±300V max float
• Rear terminal block: screw-type, A1–A7, A8, + (output+), +S (remote sense+), −S (remote sense−), − (output−), A13, A14
• Fuse: 250 VAC type (rear panel)
• Form factor: benchtop
• Manufactured in the U.S.A.
• Includes: power supply unit only — no output cables or accessories

Applications

The HP 6114A belongs to Hewlett-Packard's line of precision laboratory DC power supplies designed for electronics research, circuit development, and test bench use where tight voltage regulation and accurate setpoint repeatability matter. The 0.025% voltage accuracy and remote sense terminals make it well suited for powering sensitive analog circuits, calibration setups, component characterization, and precision measurement applications where supply accuracy directly affects results. Its dual-range output (0–20V/2A and 20–40V/1A) covers a wide range of semiconductor, small-motor, and instrument-supply voltages from a single unit. HP's benchtop precision power supplies from this era — the 1960s through the 1980s — were standard equipment in university electronics labs, aerospace test benches, and industrial R&D facilities, and they remain in active use today by engineers, technicians, and collectors who value their build quality and analog precision over modern digital equivalents.