A compensated Pt100 RTD circuit has 1 mV/°C DMM output, with linearization via positive feedback, pending Part 2 temperature-stability fixes.
A DIY PCB fixture using split-Kelvin technique enables accurate, repeatable LCR measurements for low-impedance SMD components.
Invest in stocks if you can research and continuously monitor them; otherwise, consider index funds or robo-advisors. Only use money for stock investment that you won't need for at least five years ...
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