Lambda LPD-422A-FM Dual Regulated Bench Power Supply 0-40VDC 1A For Parts

Lambda LPD-422A-FM Dual Regulated Bench Power Supply 0-40VDC 1A For Parts

The Lambda LPD-422A-FM is a dual-output regulated DC bench power supply with analog panel meters for voltage and current monitoring. It is being sold as-is in inoperable condition for parts or repair purposes only. The unit features the classic Lambda benchtop form factor with a carry handle, front-panel output binding posts, and separate voltage and current-limit controls for each output channel.

Specifications & What's Included

• Model: Lambda LPD-422A-FM
• Type: Dual Regulated DC Bench Power Supply
• Output Voltage: 0–40V DC per output
• Output Current: 1.0A maximum per output
• Number of Outputs: Dual
• Front-panel analog meters: DC Volts (×2) and DC Amperes
• Controls: Output Voltage knob and Current Limit knob per channel
• Output connections: Red and black binding posts on front panel
• Form factor: Benchtop with carry handle
• Enclosure: Ventilated olive-drab metal chassis with side mounting brackets
• Condition: Inoperable — sold as-is for parts or repair
• Included: Unit only — no cables or accessories

Applications

Lambda Electronics produced a well-regarded line of regulated DC bench power supplies widely used in electronics labs, R&D facilities, production test benches, and military/government electronics work from the 1960s through the 1980s. The LPD-422A-FM's dual-output configuration made it suited to applications requiring two independently adjustable DC rails — such as powering op-amp circuits, analog test setups, or small electronic assemblies needing positive and negative supplies. The "FM" suffix on Lambda model numbers typically denotes a military-specification or ruggedized variant, which accounts for the heavy-duty olive-drab enclosure and side mounting brackets common on rack- or panel-mounted instruments of that era. Units like this are sought today for parts, transformer harvesting, chassis reuse, or restoration projects.