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This compact 30A switching power supply has a digital meter that shows both voltage and amperage at the same time, and has adjustable voltage control. Just 5" W x 2 ½" H x 6" D and weighs only 3 lbs. -- it is the perfect pack-n-go power supply for field day, DXpeditions, camping, hiking or to pack for your next business trip or vacation to some far away place. MFJ-4230DMP gives you 25 Amps continuously or 30 Amps surge at 13.8 VDC. The voltage is front-panel adjustable from 4 to 16 Volts. MFJ-4230DMP also has a selectable input voltage: choose from 120 or 240 VAC at 47 - 63 Hz. MFJ-4230DMP has an excellent 75% efficiency and extra low ripple and noise, < 100 mV. A whisper-quiet fan cools by convection and forced air cooling. Normal air-flow around the power supply is continuous and a heat sensor increases the fan speed when the temperature rises above 70 degrees Celsius. DC outputs are one pair of binding posts on the front and two pair of Anderson Powerpoles® on the rear so you can power your dedicated HF, VHF or UHF transceiver with ease. All MFJ switching power supplies are protected by MFJ's famous NoMatterWhat™ one year limited warranty. MFJ will repair or replace (at our option) your switching power supply, no matter what, for one complete year.
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🇺🇸 Ship from USA · On Agora since 2025
$189.95