Hyperlink Roundup 12 has arrived!
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Hyperlink Roundup 12 has arrived! The first one in 2026.
It has been a minute but I've collected several links of various topics I've read and found interesting.
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undefined stefano@mastodon.bsd.cafe shared this topic on
Gli ultimi otto messaggi ricevuti dalla Federazione
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@francommit sicuro è ciò che il responsabile it dell'azienda ritiene sicuro. Punto.
Se pensi che la scelta del tuo responsabile it sia sbagliata, puoi farglielo presente. Ma il suo interesse è quello di far installare meno software possibile su un pc aziendale
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@lw I like Tuba
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@emanuelecariati @ChieseBrutte Dio ci salva almeno dalle bombe in questi bunker.
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@bagder Very good state of the art report about LLM plagiarism. Yeah, that's a difficult problem.
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@informapirata LibreOffice è sempre stato tra i software installabili ed è una suite da ufficio sicura, non è un qualsiasi software che può passarti per la testa. Tra l'altro è possibile installarlo anche tramite Microsoft Store quindi da una fonte sicura. Notepad++ e CodeCompare puoi installarli tranquillamente eppure li scarichi dal sito e quindi possono essere potenzialmente più pericolosi. @ilsimoneviaggiatore
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questo genere di persone, che sono qui perché si sentono st🪿zzo, danneggiano il fediverso allontanando gente che potrebbe riguadagnare libertà e socialità.
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Building an LC Meter with a Franklin Oscillator
Although it dates back to the early days of the Marconi Company in the 1920s, the Franklin oscillator has remained a relatively obscure circuit, its memory mostly kept alive by ham radio operators who prize its high stability at higher frequencies. At the core of the circuit is an LC tank circuit, a fact which [nobcha] used to build quite a precise LC meter.
The meter is built around two parts: the Franklin oscillator, which resonates at a frequency defined by its inductance and capacitance, and an Arduino which counts the frequency of the signal. In operation, the Arduino measures the frequency of the original LC circuit, then measures again after another element (capacitor or inductor) has been added to the circuit. By measuring how much the resonant frequency changes, it’s possible to determine the value of the new element.
Before operation, the meter must be calibrated with a known reference capacitor to determine the values of the base LC circuit. In one iteration of the design, this was done automatically using a relay, while in a later version a manual switch connects the reference capacitor. Because the meter measures frequency differences and not absolute values, it minimizes parasitic effects. In testing, it was capable of measuring inductances as low as 0.1 µH.
We’ve seen a few homebrew LC meters here, some battery-powered and some rather professional.
