Uploaded July 2025 | Updated September 2026, 2 weeks ago

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#255 In this video I look at some of the oldest IC's that are still in use and production today. These are not the best in their class but they are well known and easily accessible. Most of these components are a common site both in older and newer devices and well suited for their job.

Related videos:
uA723 DIY BenchSupply [1/2] - youtu.be/ZZFIRvxPbyQ
uA723 DIY BenchSupply [2/2] - youtu.be/8E8V7Uw-3eg
Discrete Supply build - youtu.be/8ImywucbnKM
Supply teardown - youtu.be/xL2QDJvKV-I

Datasheets and References:
ve6aqo.com/Manuals/uA723_Application_Note.pdf
ti.com/lit/ds/symlink/ua723.pdf
ti.com/lit/ds/symlink/lm317.pdf
ti.com/lit/ds/symlink/lm137.pdf
ti.com/lit/ds/symlink/lm78l.pdf
ti.com/lit/ds/symlink/lm1117.pdf
st.com/resource/en/datasheet/ld1117.pdf

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