Astron LS-3A Linear DC Power Supply

The Astron LS-3A is a compact and reliable linear power supply, providing a stable 13.8V DC output at 3 Amps. Ideal for powering communication equipment, small electronic devices, and hobbyist projects, it features solid construction and excellent voltage regulation.

Model
Astron LS-3A
Calibration
Available on request
Price
$115
Status
In stock
RFQ ref
LS-3A
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This unit

The Astron LS-3A is a robust, solid-state, electronically regulated linear power supply designed for reliable DC power delivery. Its primary function is to provide a stable 13.8V DC output, suitable for a variety of electronic applications, including communication equipment, laboratory instruments, and hobbyist projects. The unit incorporates essential protection features such as fold-back current limiting to safeguard against excessive current and shorted outputs, as well as crowbar over-voltage protection on all models, ensuring the connected equipment is shielded from voltage spikes. The Astron LS-3A is engineered to maintain consistent regulation and low ripple even under conditions of low line input voltage, contributing to the stability and longevity of powered devices. Manufactured in the USA, it is constructed with heavy-duty, high-quality materials to ensure durability and consistent performance.

Technical Specifications Model: LS-3A Manufacturer: Astron Corporation Power Supply Type: Linear, Regulated Output Voltage:

  • Nominal: 13.8V DC
  • Adjustable Range: 22-32V DC (Internally Adjustable)
  • Regulation: ±0.05 Volts Output Current:
  • Continuous Duty: 3 Amps
  • Intermittent/Peak Current (ICS): 4 Amps Input Voltage:
  • Standard: 105-125 VAC
  • Frequency: 60 Hz Electrical Characteristics:
  • Ripple Voltage: Less than 5mV peak to peak (full load and low line) (Note: One source indicates <6mV)
  • Load Regulation: 0.08% from 0 to Full Continuous Load Protection Features:
  • Fold-back Current Limiting: Protects power supply from excessive current and continuous shorted output
  • Crowbar Over-Voltage Protection: On all models (Note: One source states "except RS-3L, RS-4L and RS-5L") Interfaces:
  • Power Terminals: Banana
  • DC Output Terminals: Located on the rear panel Physical Characteristics:
  • Dimensions (H x W x D): 3¾" x 6½" x 9" (Note: One source lists as 3" x 6½" x 9", another as 3.75" x 6.500" x 9.000")
  • Weight: Approximately 9 lbs (Note: One source lists as 9.45 lbs)
  • Cooling Type: Heat sink (No fan cooling for this model)
  • Construction: Heavy-duty Internal Components:
  • Fuse: GMC 2A (Note: One source lists as Chassis mounted fuse) Operational Environment:
  • Maintains regulation and low ripple at low line input voltage Manufacturing:
  • Made in USA

Why Choose Aumictech for Astron LS-3A? At Aumictech, we specialize in supplying high-end power supply equipment. Whether you need reliable 13.8V DC output for critical communication systems, stable power for laboratory instrumentation, or consistent performance for complex electronic projects, our team ensures the Astron LS-3A delivers maximum performance for your application.

Astron LS-3A — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Astron LS-3A. All calibrations are performed to NIST-traceable standards and ship with a certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Astron LS-3A price

This Astron LS-3A is listed at $115. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Astron LS-3A calibration cost

NIST-traceable calibration for the Astron LS-3A is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Turnaround is 1 to 3 business days after receipt. See full calibration details →

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