An Adjustable Breadboard Power Supply by LM317

Monday, March 10th, 2008
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This Instructable will show you how to build an adjsutable breadboard power supply entirely from Radioshack parts. It can provide multiple voltages directly to the power rails on a prototyping breadboard. This could be useful for people on a low budget, who don’t like to order parts online, or who need a good weekend project.
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Bread Board Power Supply by LM317

Tuesday, March 4th, 2008
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uCHobby’s first electronics kit is a handy breadboard power supply. The power supply design is simple but just what I needed for my electronics projects. I have seen several similar power supply boards but none had all the features I wanted. This design was also a good first project to help me learn about Kicad.
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ultra-regulation power supply +24V -24V by LM317,LM337

Sunday, March 2nd, 2008
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The ultra-regulation of the power supply +48VDC,+24VDC,+16.4VDC is so over the top and unnecessary that most, if not all, people building this amplifier would not even notice the difference. However there are a number of benefits to this design. First its a dual tracking design. Because the open loop gain of the amp is low, [...]