Electronics > Beginners

Power supply | need help deciphering the schematic

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Kim Christensen:
Not surprising that you ended up buying some LM741. It's the most used chip in tutorials and examples. While it's been superseded by more modern chips long ago, it's still a usable IC within it's limitations. Worth plugging into a breadboard and playing around with.

The L100 you mentioned is also obsolete, but it could still be a useful learning tool. Buy a spare if you're getting them cheap.
The adjustable current limiting in the LM100 circuit you posted appears to interact with the voltage setting, which would be a bit of a pain in a lab power supply.

If you don't need adjustable current limiting, the LM317 could be used instead.  (Good for 1.5A and 40V max input)

Pixelmarth:
Yeah I've got sockets for the opamps, will use them

Pixelmarth:

--- Quote ---It's the most used chip in tutorials and examples.
--- End quote ---
Definitely fell for that haha!
I've got a few LM317Ts at work actually, however I need an adjustable current.

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