Astron RS12M

The Astron RS12M is a solid-state, electronically regulated linear DC power supply primarily designed for amateur radio, CB, and other communications equipment, known for its reliability and low noise output. It provides a stable power source with built-in analog meters for monitoring.
Key Specifications
Output Voltage: 13.8 VDC (internally adjustable from approximately 11-15 VDC).
Output Current: 9 Amps continuous duty, and 12 Amps Intermittent Communication Service (ICS) / surge.
Regulation: Solid state electronically regulated linear design provides low ripple (less than 5 mV peak to peak at full load and low line input voltage).
Protection: Features fold-back current limiting and crowbar over-voltage protection to safeguard the power supply and connected equipment.
Metering: Includes a front panel switchable analog meter to monitor both voltage and current output.
Input Voltage: Designed for 105-125 VAC input (220V models are also available).
Dimensions: Approximately 4.5″ H x 8″ W x 9″ D.
Cooling: Utilizes a heavy-duty heat sink for cooling.
Made in USA: According to sources like Walmart and eBay, this product is made in the USA.
Expert and User Opinions
Reliability: Reviewers consistently praise Astron power supplies for their long-term reliability and durability, with some units lasting for decades with minimal maintenance.
Performance: The linear design is highly valued in amateur radio applications because it produces very low noise and ripple, which is crucial for sensitive electronics and clear signal transmission.
Build Quality: Users describe the build quality as superb and heavy-duty, designed for serious and continuous use rather than being a disposable item.
Usability: The built-in volt/amp meter is considered a valuable feature for real-time monitoring and troubleshooting connected gear.