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Tag Archives: power supply
Project Epsilon: Linear Regulated Power Supply from Spare Parts
Belgian engineering student Gert-Jan built a great looking, and functional, linear regulated power supply for a test bench from an old radio transformer and a handful of supporting parts. This is a pretty nice looking adaptation of the common LM317-based … Continue reading
Oregon Electronic Model A3 Variable Voltage Regulated Power Supply
Here’s another project I just finished at Rain City Audio:
This vacuum tube power supply from an engineer’s test bench can replace a radio or test circuit’s power supply to help with troubleshooting or experiments, with up to 400V for B+ and 6.3V 5A for the heaters. It needed some new capacitors, then fired right up and works perfectly! Continue reading
Posted in Electronics, Radios and Tubes, Vintage
Tagged A3, antique radio, B+ supply, bias supply, capacitor, capacitor replacement, Model A3, Oregon Electric, Oregon Electronic, Oregon Electronics, plate supply, power supply, repair, restoration, tube, tube radio, vacuum tube, Variable Voltage Regulated Power Supply, vintage
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Antique Car Radio Repair: the 1951 Firestone 4-B-31 “Roamer” Vibrator Radio
A local friend is building a rat rod out of 1920s-1950s parts, a custom collection that ultimately will turn into a very fast car powered by a huge V8. He found a vintage car radio to go with it, the … Continue reading
Posted in Projects, Radios and Tubes, Vintage
Tagged 4-B-31, 6V, 6V battery, 6V6, antenna, Antique, antique car radio, antique firestone radio, antique radio, car radio, crutchfield, Firestone, firestone tire & rubber, old firestone radio, power supply, project, radio, rat rod, repair, restoration, Roamer, solid state vibrator, the roamer, tube radio, ups, vacuum tube, vibrator, vintage, vintage car radio
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YAMR [Yet Another Monitor Repair] ViewSonic VP191b
A little while ago, I picked up a set of seven LCD monitors in various states of not working to work on repairing and maybe eventually reselling. The first one was quite easy – it just needed a wire reconnected … Continue reading
Posted in Electronics, Photos, Projects
Tagged capacitor replacement, fried electronics, LCD, Monitor, power supply, project, projects, repair, salvage, Viewsonic, VP191b
2 Comments
Westinghouse LCD Repair
After seeing the repair I made on the Samsung LCD monitor, a friend gave me a few-years-old Westinghouse LCD/TV that had quit working – it wouldn’t power on anymore. It’s a Westinghouse SK-19H210S, 19″ LCD accepting VGA or HDMI up … Continue reading
Posted in Electronics, Photos, Projects, Television
Tagged capacitor replacement, cost engineering, fried electronics, HDTV, LCD, Monitor, power supply, recycling, repair, SK-19H210S, soldering, Westinghouse
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Adventures in Dumpster Diving: Samsung 225BW LCD Repair
I found a Samsung 225BW LCD sitting on top of my apartment’s dumpster, and figured I’d drag it upstairs. It’s a few year old model but it’s better than the current older Dell LCD that I’ve been using (1680×1050 versus 1440×900). … Continue reading