April 2021 Updates
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Updates to the Python page on asyncio including info and code examples on Tasks and how they are scheduled for execution immediately.
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Added info on industry standard package pinouts for op-amps.
 
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Added Win Source Electronics and Microchip Direct to the Electronic Suppliers page.
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Added an equivalent circuit model for a crystal component (piezoelectric resonator).
 
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More info on crystal resonator operating modes.
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Added new page with info on JFETS.
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Added info on the Wien bridge oscillator to the Oscillators page. This includes schematics:
 
and simulation results: