🪷Lily pad frog 🪷This #MosaicMonday we’re enjoying the sparky cuteness of this little frog enjoying their lily pad amongst the water birds in this Nilotic scene.
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🪷Lily pad frog 🪷
This #MosaicMonday we’re enjoying the sparky cuteness of this little frog enjoying their lily pad amongst the water birds in this Nilotic scene.
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undefined filobus@sociale.network shared this topic on
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🪷Lily pad frog 🪷
This #MosaicMonday we’re enjoying the sparky cuteness of this little frog enjoying their lily pad amongst the water birds in this Nilotic scene.
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Gli ultimi otto messaggi ricevuti dalla Federazione
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Giustizia, sicurezza e giornalismo. Due giorni di eventi del Centro Balducci. E poi il ricordo di Siani
@giornalismo
articolo21.org/2025/11/giustiz…
Venerdì 21.11.2025, ore 18 Incontro “Conoscere per superare i
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Al via le giornate del Premio Luchetta
@giornalismo
articolo21.org/2025/11/al-via-…
Dal 21 al 23 novembre prossimi Trieste ospita professioniste e professionisti del giornalismo nazionale e internazionale, testimoni di drammi e di storie provenienti da tutto il mondo. Il giornalismo d’inchiesta torna protagonista sul palco del Teatro Miela
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@tarkasteve it is fun!
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Garante della privacy, i lavoratori hanno chiesto al collegio di dimettersi. Lascia il segretario generale | Wired Italia https://blog.quintarelli.it/2025/11/garante-della-privacy-i-lavoratori-hanno-chiesto-al-collegio-di-dimettersi-lascia-il-segretario-generale-wired-italia/
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RE: https://floss.social/@omgubuntu/115583973694128369
I think it's worth pointing out Mozilla has utterly lost the browser wars. It's been a rout over the past decade as Mozilla has retreated from every front.
Even if I trusted Mozilla leadership to make decisions on AI, I don't trust they know how to stop the corporate take over of anything.
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Gilbert Cell Lacks Sullivan
If you’ve ever used an NE602 or similar IC to build a radio, you might have noticed that the datasheet has a “gilbert cell” mixer. What is that? [Electronics for the Inquisitive Experimenter] explains them in a recent video. The gilbert cell is a multiplier, and multiplying two waveforms will work to mix them together.
At the heart of the gilbert cell is essentially three differential amplifiers that share a common current source. The video shows LTSpice simulations of the circuits as he explains them.
One reason these work well on ICs is that they require very closely-matched transistors. In real life, it is hard to get transistors that match exactly. But when they are all on the same slab of silicon, it is fairly straightforward.
What we really like is that after simulating and explaining the circuit, he explains why multipliers mix signals, then builds a real circuit on the bench using discrete transistors and matched transistor arrays. There is a bit of trigonometry in the explanation, but nothing too difficult.
Of course, the most common application of differential amplifiers is the op amp. The NE602 is out of production, sadly, but if you can find any, they make dandy receivers.
Did they do something?
