Arrived big box for recycling and I found big stock of NOS (New Old Stock) radio vacuum tubes. It is the set for repairing some scientific devices. Now these tubes are used in cool hifi audio amplifiers. According to documents, the lamps arrived to USSR in 1977. Most of the lamps are manufactured in 1966. […]
We have small local network at home. As it is hobbyist LAN, the cables goes in various strange ways- on the trees, near power lines and etc. We are using FTP ant unshielded (!) UTP cable. In summer, we have few thunderstorms every year. And every year we have dead switches and LAN cards. One […]
For some reason, I need more space on my windows desktop. Especially when I edit video, draw images or create and admin webpages. My computer, with integrated i915 graphics didn't work with second PCI video card. So I was forced to buy PCIe (pci express) video card. My main criteria was silent cooler. So I […]
As cellular phones become more wide spread and newly designed notebook computers and other portable information devices continue to be released, batteries are now required to be “very thin” in addition to having a large capacity and being light in weight. Panasonic is one of the first companies in the industry to successfully mass produce […]
It WAS USB2.0 flash drive from Transcend. It was faulty from the beginning. Sometime the system freezed during work and after few of such hangings, the device is unrecognisable. As user lost documents of buying it was given to me. It is not working so I opened to see what is inside:
USB flash drive from […]
Among the stuff prepared for recycle I found some electrooptical device:
Side view
On one side there is objective-lens: MIR-1; 2.8/37:
Front view
The other side is covered with big lens:
End view
There is small high DC voltage source (not shown in images). The output of source is about 5…7kV. When i powered the device I managed to see some […]
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Place for rent. |