How to Build a DIY 12V Power Supply from an Old PC PSU | Fish Finders, Car Accessories, More!
Автор: American Angling
Загружено: 2025-05-15
Просмотров: 3571
Looking for a simple way to power your 12V fish finder, car accessories, or LED lights without hooking up a car or boat battery? In this video, I’ll show you how to convert an old desktop computer power supply (ATX PSU) into a safe and stable DIY 12V power supply for your workbench or garage.
Whether you’re testing a Garmin, Humminbird, or Lowrance fish finder, powering dash cams, running LED strips, or building a test bench for your next 12V project — this method works.
💡 What You’ll Learn:
How to modify a PC PSU for 12V output
How much current you can safely draw
What you can power (fish finders, car gear, lights, and more)
Safety tips to avoid damaging your electronics
🛠️ Tools & Parts Used:
Any ATX Power Supply (300W+ recommended)
Binding posts or banana jacks
Multimeter
Electrical tape / heat shrink
Basic wire tools
🔋 Ideal for testing:
Garmin LiveScope
Humminbird Helix & Mega Live
Lowrance HDS, Elite FS
12V car audio
LED light bars and dash cams
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🎯 What We Cover:
• Garmin LiveScope & sonar tutorials
• Boat wiring & rigging walkthroughs
• Gear reviews from affordable to elite
• Real-world tips for tournament anglers
• Southwest Michigan lake strategies
🔧 Filmed on a restored 1992 Astro 18FDX
⚙️ Powered by a Mercury XR4 150
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