about power supply of opertional amplifier - Electrical Engineering Stack Exchange
MC34071 | Electronics Forums
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TL081 Op-Amp Pinout, Example Circuit, Datasheet, Applications
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DIYfan: Adjustable lab power supply
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![Solved] Input voltage of Regulated Power Supply DIY Kit](https://i.imgur.com/aNq3F0M.png "Solved] Input voltage of Regulated Power Supply DIY Kit")