Pyramid 13.8V 2.5A Linear Bench Power Supply

The Pyramid PS3KX is a compact linear bench power supply that converts 115V AC into a steady 13.8V DC output at 2.5 amps for hobbyist and bench testing use.

Built for hobbyists, electronics technicians and bench installers who need a dependable tabletop DC source, the PS3KX delivers regulated linear output with easy screw-type terminals and simple plug-in operation. Its metal case with heatsink and internal cooling fan keeps the unit running reliably during sustained use, while auto-reset fuse and electronic overload/short-circuit protection protect both the supply and connected devices.

How does the PS3KX provide reliable power for bench testing?

The PS3KX uses a linear regulated design to deliver a stable DC voltage ideal for sensitive electronics testing and small equipment. It maintains a constant 2.5 amp output with a 3.0 amp surge capability so short peaks won’t trip normal operation.

• Output: 13.8V DC regulated for consistent voltage under load
• Current: 2.5 A continuous, 3.0 A surge for transient demands
• Power input: 115V AC, 60 Hz, 50 watt rating
• Linear regulation minimizes electrical noise for cleaner supply

What installation and connection options does it offer?

Setup is straightforward: plug the PS3KX into a standard 115V AC outlet and hardwire devices using the screw-type terminals on the rear panel. The clearly marked red (positive) and black (negative) terminals accept a wide range of wire gauges for secure connections.

• Universal screw terminals for permanent or temporary wiring
• Front power ON/OFF switch for quick control
• Compact footprint (7.5" x 4.9" x 3.0") fits on workbenches and desktops
• Rugged metal housing for tabletop safety and durability

How does the PS3KX protect devices and the operator?

The unit includes multiple built-in safeguards: electronic overload and short-circuit protection plus an auto-resetting fuse. These features reduce the risk of damage from wiring mistakes, accidental shorts, or overload conditions while you test or power equipment.

• Electronic overload and short-circuit protection
• Fuse-protected design with auto-reset capability
• Internal heatsink and cooling fan to prevent overheating
• Stable linear design to avoid voltage spikes

What practical applications suit this compact power supply?

The Pyramid PS3KX works well for hobby electronics, amateur radio accessories, small DC devices and bench testing tasks where a steady 12–14V source is needed. It’s not a laboratory-grade programmable supply, but it’s a reliable, low-noise option for many everyday uses.

• Powering CB, scanner and HAM radio equipment at stable voltages
• Testing components and small circuit boards on a workbench
• Replacing batteries for repair or long-term device operation
• Hobby projects, LED modules, and low-voltage motors within 2.5A

Who is this for: The Pyramid PS3KX is aimed at hobbyists, amateur radio operators, electronics students and small-repair technicians who need a compact, reliable 13.8V DC source with simple screw-terminal connections and built-in safety features. If you want a durable tabletop converter that delivers steady linear-regulated power for day-to-day bench work without the complexity of a programmable lab supply, the PS3KX is a practical choice.