Astron VLS-25M Variable DC Power Supply

The Astron VLS-25M is a 25 Amp linear power supply known for its reliability and clean DC output. It features a voltmeter and ammeter for monitoring voltage and current, making it suitable for various applications requiring a stable power source, including amateur radio and electronics testing.

Model
Astron VLS-25M
Calibration
Available on request
Price
$210
Status
In stock
RFQ ref
VLS-25M
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This unit

The Astron VLS-25M is a robust, solid-state, electronically regulated linear power supply designed for applications requiring a stable and clean DC output. It features user-adjustable voltage and current limiting, making it a versatile tool for laboratory testing, amateur radio, and other electronic applications in the USA.

Technical Specifications * Model: Astron VLS-25M

  • Power Supply Type: Linear, Regulated, Variable
  • Input Voltage: 105-125 VAC
  • Output Voltage: 28 VDC ± 0.05 volts * Internally adjustable range: 22-32 VDC * Externally adjustable range: 5-32 VDC
  • Continuous Duty Output Current: * @ 28 VDC: 18 Amps * @ 12 VDC: 10 Amps * @ 5 VDC: 5 Amps
  • Intermittent Communication Service (ICS) Output Current: * @ 28 VDC: 25 Amps * @ 12 VDC: 12 Amps * @ 5 VDC: 5 Amps
  • Externally Adjustable Current Limit: 1-25 Amps * Adjustable from 1.5 Amps to Full Load
  • Ripple Voltage: Less than 5mV peak to peak (full load and low line)
  • Load Regulation: 0.08% from 0 to Full Continuous Load
  • Metering: Separate backlit voltmeter and ammeter on the front panel
  • Protection Features: * Fold-back current limiting: Protects the power supply from excessive current and continuous shorted output * Crowbar over voltage protection: Included on all models except specific RS/LS series * Chassis mount fuse
  • AC Current Draw: Not specified

Electrical * Input: 105-125 VAC, 50/60 Hz

  • Output: Variable DC, 28 VDC nominal (adjustable 5-32 VDC)
  • Current Limiting: Externally adjustable from 1.5 Amps to the maximum rated output

Interfaces * Power Terminals: 1/4"-20 Screw Type

  • Power Cord: Three-conductor power cord

Physical * Dimensions: 6 x 13¾ x 11 inches

  • Shipping Weight: 46 lbs
  • Cooling: Heavy duty heat sink
  • Construction: Made in the USA

Compatibility * The Astron VLS-25M is suitable for powering mobile, portable, and aviation equipment from standard wall current. Its clean DC output and adjustable parameters make it compatible with a wide range of electronics testing and amateur radio applications. Why Choose Aumictech for the Astron VLS-25M?

At Aumictech, we specialize in supplying high-end power supply equipment. Whether you need reliable laboratory-grade power, stable output for radio communications, or precise voltage and current control for electronics testing, our team ensures the Astron VLS-25M delivers maximum performance for your application.

Astron VLS-25M — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Astron VLS-25M. 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 VLS-25M price

This Astron VLS-25M is listed at $210. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Astron VLS-25M calibration cost

NIST-traceable calibration for the Astron VLS-25M 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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