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Harwin adds to Sycamore Contact line

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Harwin has added to its Sycamore Contact (https://www.harwin.com/product-highlights/sycamore-contact/) product offering. While this series was initially capable of accommodating 1mm and 1.5mm diameter contact pins, it now covers pin sizes from 0.80 to 1.90mm. There are a wide variety of scenarios where electronic devices/modules will require replacement over time (such as depleted gas sensors or worn-out …

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ADI launches SOI 44GHz single pole, double-throw switches

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ADI has launched two 44 GHz single-pole, double-throw switches made on an SOI process. The switches are broadband, with the ADRF5024 yielding flat frequency response from 100 MHz to 44 GHz, while the ADRF5025 from 9 kHz to 44 GHz, with repeatable characteristics better than 1.7 dB insertion loss and 35 dB channel to channel …

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Dutch start-up IPOs and gets $15bn valuation

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Adyen, the 12 year-old Dutch PayPal, IPO’d on the Amsterdam exchange yesterday and saw its shares soar to nearly double the IPO pricing valuing the company at $15.8 billion. Adyen processes payments. Customers include Netflix, Facebook and Spotify. It also supplies sales systems for shops for physical transactions. It processed $127 billion worth of payments in …

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Precision rectifier/clamp works near 0V for single-supply circuits

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There is a classic circuit for stopping a voltage increasing beyond a certain value in analogue circuitry And here it is, modelled using LTSpice. It is the same circuit as the classic simple precision rectifier (set to pass the negative half-sine), but with the non-inverting input of the op-amp connected to the voltage-to-clamp-to rather than …

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How the Kelvin Varley voltage divider works, and two good DIY test gear sites

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The dedication of some folk cannot be underestimated, and hats of to Conrad Hoffman for creating his own metrology equipment, which was described in Electronics Now in 1996. There are three precision items: voltage source voltage divider null detector The three parts of the article are reproduced by the author here. What bought me to the …

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‘They’ land in small town

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I have only just come across this image, which I think is from 2006. It is not of aliens landing in a small German town, but the spectrometer being delivered to KATRIN (Karlsruhe tritium neutrino experiment) to the Tritium Laboratory Karlsruhe. It is 23m long, 10m in diameter, and weighs 200 tonnes. According to Wikipedia, …

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Soaring servers

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Q1 server market revenues  increased 33.4% y-o-y and shipments grew 17.3% y-o-y, says Gartner. North America and Asia/Pacific grew revenues 34% and 47.8%, respectively and unit shipments by 24.3% and 21.9% respectively. EMEA grew 31.2% in revenues and 2.7% in units. Japan had a decline in both shipments and revenue (-5.0% and -7.3%, respectively). Latin …

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