LM30-A Linear Power Supply, 30A, 5-15V Adjustable / 13.8V Fixed DC, Analogue Meter

The Sharman LM30-A is a heavy-duty, 30A linear regulated DC power supply — the preferred choice for serious CB and amateur radio operators who demand the cleanest possible power with zero switching noise. Unlike switch-mode supplies, a linear power supply produces virtually no RF interference, making it ideal for use alongside sensitive radio equipment. With both adjustable (5–15V) and fixed (13.8V DC) output modes, a built-in analogue meter displaying voltage and current, a cigarette lighter socket output (10A max), and automatic short-circuit and over-current protection above 30A, it's a comprehensive bench power solution. Accepts UK mains input of 220V AC. Key Features 30A output current Adjustable DC output: 5–15V Fixed DC output: 13.8V — standard voltage for CB & ham radio equipment Linear design — zero switching noise, no RF interference Built-in analogue meter — displays supply voltage and current Cigarette lighter socket output: 10A max Automatic short-circuit protection Automatic over-current limiting above 30A 5A fuse protection Input: 220V AC Dimensions: 300 x 150 x 240mm (W x H x D) Weight: 9kg Technical Specifications Type: Linear regulated DC power supply Input voltage: 220V AC Output voltage: 5–15V adjustable / 13.8V DC fixed Output current: 30A Protection: Short circuit & automatic current limiting (>30A) Meter: Analogue (voltage & current) Cigarette plug terminal: 10A max Fuse: 5A Dimensions: 300 x 150 x 240mm (W x H x D) Weight: 9kg