William Thomson / Kelvin explaining piezo-electricity in 1893.

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I'm happy that at least the setup looks sort of intriguing, since otherwise my attempts are reproducing a century old scientific experiment are utterly failing. We will get there at some point.

#piezoCrystals #79 #ArtScience #SystemsThatMatter

Learned about slew rates and other limitations of signal amplifiers, but got to 70V p-p maximum output swing with a -3 dB point around 1.5 MHz.

#analogElectronics #79 #piezoCrystals #SystemsThatMatter

For the new crystal experiments I need irregular agglomerates more than I need the canonic shapes.

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Preparing new crystal experiments and the most suitable transistors I have turn out to be these new-old-stock in their similarly new-old-bag. These were designed for driving core memory arrays.

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This week I was experimenting with a principle that was explained for the first time *exactly* a century ago, to the day.

#PiezoCrystals #ErichGiebe #AdolfScheibe #79 #SystemsThatMatter

A very interesting rabbit hole that opened up when I wondered when and how the piezo-electricity of ammonium dihydrogen phosphate was discovered.

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Back to the books.

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