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Questions relating to designing PCBs
By lyndon
#200845
Those specific drawings originate from the National Semiconductor Linear Applications Handbook, but many the circuits themselves may have been published earlier in Walter Jung's IC Op-Amp Cookbook. National Semiconductor is now owned by Texas Instruments.

I'm a pretty good mood today :-) If you provide me with an address in the US, I'll send you my old, dog-eared copy of the National Apps book (it was already well-thumbed by the time I got it). Weighs about 5 pounds and I haven't cracked it open in years. Guarantee you'll learn a ton from it if you're interested in linear circuits.
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