Dick Smith D3800 Power Supply In very good used condition.It's not a light weight switching supply which can generate RFI.The ammeter is abit dicky, pardon the pun. It's just got lazy,reads low. This supply gives you an output voltage variable from three to 15 volts with a maximum output of 25 amps. Actually, this needs to be qualified to some extent, because the 25 amps is only available at 15 volts. As the voltage goes down, so does the available current, so that by the time you get to three volts the maximum current available is down to about two amps. At the usual 13.8 volts, the maximum continuous current is about 20 amps, but it will still handle peaks up to 25 amps that might be required by a 100 watts plus PEP output transceiver. The supply is a solid transformer type with full electronic regulation. It is not a light weight switched mode supply. It measures 320 mm deep, 150 mm high and 145 mm wide and weighs in at a hefty 8.6 kg. There are two separate meters to monitor both voltage (0 to 15 V nominal) and faulty current meter (0 to 30 A nominal), and three sets of DC output terminals, one pair rated at the full output current and two rated at a maximum of three amps each. A thermally switched cooling fan, mounted on the rear panel, sucks air through the entire cabinet. Overload protection includes 30 amp instantaneous current limit circuitry, a three amp AC mains circuit breaker, a transformer thermal fuse and a fused transformer auxiliary secondary winding. The metal cabinet is finished in matt black and presents a very neat appearance.