I built a replacement supply for my Dolphin. Well "built" is over-stating it. I bought a 150 watt, 30 volt power supply, the proper Amphenol mating connector to the Dolphin, and an AC plug.
Details are in my Google Docs document at Maytronics Dolphin Power Supply Replacement .
No soldering needed and all the parts are readily available online. I spent about $50, buying some of the items new on eBay, but even if buying everything from electronics distributors the cost would be well under $100.
Works great and I prefer it to the original supply since I can use it with a household timer or a Wi-Fi controlled socket.
