Building an OPA541-based power amplifier for function generators

This video documents my efforts in designing and building a power amplifier using a OPA541-based module. It is mainly about the design and build of the power supply. Its not intended as a build instruction for folks to copy because in hindsight, I would have done quite a number of things differently, but it may serve as an inspiration if you plan similar things.

00:00 Why bother 01:36 TPA3116-based amp 04:01 OPA541 06:11 Power supply requirements 10:56 The parts 12:44 Schematic 14:35 The build 20:08 Turning it on 22:03 Some tests 22:54 Power bandwidth

Tim's blog is at: https://www.dmcinfo.com/latest-thinking/blog/id/9462/low-cost-function-generator-amplifier-diy My video on panel meters: https://youtu.be/PCwxSXlXzlo My videos on making front panels: using foil: https://youtu.be/6D1oOXUbIh8 using lamination: https://youtu.be/Ors5214cxOM My video on power resistors: https://youtu.be/Fxp0nxphgYw

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