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Author Archives: Administrator
My Disk and Data
(AI translated) Yesterday, I wanted to open an old file and pfff…. A quick analysis showed that the disk is dying, although SMART says everything is fine. Shit. But it’s a good opportunity to talk about how my disk farm … Continue reading
Ultra expensive keyboard
(AI translated) Those who have traveled by air will probably recognize these keyboards. This is an industrial-level keyboard with ‘cherry’ keys and add-ons. This also shows that Windows was very happy when I connected it to the computer. This is … Continue reading
AVR103: Graphics module VFD GU140×16
(AI translated) Lithuanian airports disposed of some equipment, and there were devices with VFD screens (the devices themselves were specific, with very strange software). At least I got the VFD screens: Noritake Itron GU112x16G-7806A V3. I think the software is … Continue reading
CO2 laser tube (bulb)
(AI translated) My CO2 laser has been unused for a couple of years. Its tube degraded and started to weaken. About a year ago, it was still possible to cut paper and make some “applications.” Today I tried again – … Continue reading
LM2596* modules from China
(AI translated) For my latest collection exhibit, I decided to upgrade the power supply – to create something like the LM2596 from an overclocked 7805… Before the postal service went crazy, I bought the cheapest PCBs with counterfeit LM2596ADJ from … Continue reading
RIFA capacitor failure
(AI translated) Anyone somewhat involved with old electronics will eventually encounter RIFA capacitors and their tendency to catch fire. I finally experienced it myself – a peculiar device was working, and I had to walk the dog. When I got … Continue reading
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My 484 enemies
I have 484 enemies… Solder balls, 0.55mm diameter. Just testing my first 4 layer PCB with some second hand FPGA chips. I am using old solder paste to build new balls… but with bad result. Two pins are missing (from … Continue reading
Forbidden NEMA repair
(AI translated) Somewhere, I mentioned that I have a photolithographic (UV-curing resin) printer. But I never mentioned that when I first bought that printer, my relatives decided to move it to another place without my knowledge because it smelled very … Continue reading
HUB08 LED board (matrix) display protocol and interface to STM32F103
HUB08 LED display control protocol explained. Continue reading