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Rectangular metal power supply unit with front panel controls and output connectors

Tekpower

Tekpower TP30SWII 30A 13.8V Analog Switching Power Supply with Noise Offset

SKU CH-72NB-VKBVJ

A 13.8 V fixed or 9-15 V adjustable switching supply delivering up to 30 A with a noise-offset knob to suppress switching noise for radio gear

  • Delivers stable 13.8 V DC for ham and CB radio gear
  • Adjustable 9–15 V output covers a range of communication devices
  • 30 A maximum current with front snap-in and rear cigar-lighter connections
  • Noise-offset knob reduces switching interference for clearer signals
  • Built-in overheat and short-circuit protection safeguards connected equipment

Ham and CB radio power supply

The Tekpower TP30SWII delivers fixed 13.8 V DC and an adjustable 9 to 15 V range at up to 30 A for amateur and CB radio equipment. It runs from 110 V AC at 60 Hz and includes overheat and short-circuit protection for safe continuous operation.

Rear main output plus front cigar and snap

A rear-panel DC terminal handles the full 30 A load while a front cigar socket is rated at 10 A and a snap-in terminal provides another 30 A path. The analog noise-offset knob lets operators suppress switching noise that would otherwise interfere with sensitive communications gear.

Noise offset knob and fused input

An 8 A input fuse protects the supply from mains faults and the front-panel offset control reduces ripple below 80 mVp-p at rated load without extra accessories. The package supplies the power unit only, so users add their own cables and mounting hardware.

Highlights

  • Delivers stable 13.8 V DC for ham and CB radio gear
  • Adjustable 9–15 V output covers a range of communication devices
  • 30 A maximum current with front snap-in and rear cigar-lighter connections
  • Noise-offset knob reduces switching interference for clearer signals
  • Built-in overheat and short-circuit protection safeguards connected equipment

Specifications

No published specifications for this item yet.

Questions about this item

What does the 110 V AC 60 Hz input and 30 A maximum DC output mean for real-world use?

The unit runs from a standard 110 V AC 60 Hz wall outlet and delivers up to 30 A at 13.8 V fixed or 9–15 V adjustable, with the front snap-in terminal rated for the full 30 A and the cigar socket limited to 10 A.

Will the 7.5 by 2.8 by 7.5 inch chassis fit on my bench or in a rack?

The supply measures 7.5 inches wide, 2.8 inches high and 7.5 inches deep, weighing 6 lb, so it sits on a shelf or bench without rack ears and leaves room for rear cable clearance.

How do I connect the load and adjust the noise offset without causing a fault?

Wire the load to the rear main output or front snap-in terminal for up to 30 A, use the cigar socket only up to 10 A, set the voltage between 9 V and 15 V before powering on, then turn the noise offset knob only after the supply is running to suppress any switching noise.

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