12V 500mA Linear Power Supply 3.5mm Plug | PV-1250C

The PV-1250C is a premium, heavy-duty AC-DC Linear Power Supply delivering an ultra-clean, noise-free 12V DC output at 500mA. Unlike modern switching regulators that can introduce high-frequency electrical interference, this traditional transformer-based linear power supply is engineered to provide the stable, ripple-free voltage required by sensitive analog circuitry, vintage audio equipment, and laboratory instruments.

Key Features & Specifications:

• Model / Part #: PV-1250C
• Input Voltage: 120V AC, 60Hz (Standard US Wall Outlet)
• Output Voltage: 12V DC (Traditional Non-Regulated Linear Output)
• Maximum Current: 500mA (0.5 Amp)
• Output Plug: 3.5mm Male Mini-Plug (Mono Phone Tip)
• Plug Polarity: Center-Positive (+) / Tip-Positive
• Design Type: Heavy-Duty Internal Copper Transformer (Linear Design)

⚠️ IMPORTANT TECHNICAL NOTE FOR TESTING: This is a traditional non-regulated linear transformer. Because it is non-regulated, measuring the output voltage with a voltmeter under an open circuit (no-load) condition will display a higher voltage reading (typically around 15V–17V). This is completely normal behavior for traditional linear power supplies. The output voltage will naturally stabilize down to its true 12V DC rating once it is connected to a proper load drawing up to 500mA.

Engineered for Sensitive Institutional & B2B Applications:

The zero-noise electrical profile of this linear transformer makes it the default replacement choice for procurement officers, engineers, and facility managers across specialized sectors:

• Audio & Communication Equipment: Powering vintage synthesizers, guitar pedals, radio receivers, telecommunications gear, and analog mixing consoles where switching noise disrupts signals.
• Laboratory & Testing Facilities: Providing isolated, pure DC power loops for calibration tools, scientific sensors, and diagnostic measurement devices.
• Legacy Security & Control Infrastructure: Serving as a highly dependable power source for older, specialized access control panels, intercom systems, and signaling hardware.

Commercial Reliability:

Built with robust internal components designed to withstand continuous professional deployment. This wall adapter offers exceptional thermal dissipation and electrical isolation to preserve your vital downstream equipment.