Technik & mehr von damals und heute
Unfortunately, the intervals in which I find some time to write a new post for the blog have not gotten shorter. But post a post per month, I think … 🙂 This time it’s not a retro craft project from the local Gefielden or a restoration of an old device, but again something about Arduino.…
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The Radiometer – also called lightmill – is an instructive, physical demonstration object that was invented about 100 years ago by the English physicist Crookes. This small physical-technical arrangement clearly shows how light is converted into mechanical energy. The working princip of the solar radiometer: If warm light, ie sunlight, light of light…
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A functional update for the IV-11 DCF melody watch is available from gr-projects. It is a radio temperature transmitter. The special thing about it is, that the transmitter operating in the ISM band 433 MHz is equipped with a photovoltaic cell (solar cell). Depending on the version, a small rechargeable battery or a CR2032 button…
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Again and again it happens to me that a USB memory stick loses its function and is suddenly no longer recognized. Often the stick is still registered as a drive in the system, but it lacks the disk, or even the system reports that the stick is not formatted. And even though he just…
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At least one blog post per month to write I have set myself the goal, even if it is not always easy to implement this temporally. Anyone who has small children himself can perhaps imagine that. But in the evening and in between, I can collect material and edit it. -> it just takes everything…
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The Sony RX100 digital still camera with its 20.2 megapixel EXMOR CMOS sensor impresses with its excellent image quality and compact design. The sensor size of one inch and the front Zeiss Vario Sonnar F1.8 lens are also responsible for the good image results. With 10x6cm and a thickness of 3.6cm, the camera is still…
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A new member of the collection of old multimedia devices is the Panasonic AG-6400. The AG-6400 is a (semi) professional video recorder from the 80s. The device records on VHS magnetic tapes and also reproduces this standard. It is portable and was the recorder for the video cameras of that time. It draws its energy…
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Occasionally I browse flea market websites for vintage and retro devices from the 70s, 80s and 90s. If an absolute bargain is in sight, then I strike and sacrifice a few euros. This time I found a whole box of Sony portable media players. The whole thing just cost me the equivalent of a pack…
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The bench multimeter from Keithley is an old companion in the field of measuring instruments. The types of the 2000 series are predominantly used in our laboratories. They are available in different equipment variants with regard to the interfaces to the outside world. Here GBIP bus is of course a standard, as is RS232. The…
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In this post I would like to devote myself to something else. It’s not about retro technology, it’s about a little thing that makes working in the office/lab easier. One of the many measuring devices I deal with is an old Agilent LCR meter. As is known, the LCR Meter 4297A can be used to…
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