ENIAC – World’s First Electronic Computer Video A thousand times faster than a desk calculator. Short video. https://www.facebook.com/reel/1884946728797320/?mibextid=9drbnH&s=yWDuG2&fs=e
Archive for the ‘Electronics Books, documents, literature’ Category:
2025-08-27 EVs Are Always Cleaner No Matter Where You Live
EV myth, busted. https://www.facebook.com/100050508698574/posts/pfbid0NDSFxzT27mYj3NXVdxkRVPPqLkWjU8MZN3GA7qd4iMFkxSBN2U4QdE5hYfs8yb6sl/?mibextid=6yaNxA
2025-08-23 Automatic Coil Winding Machine
https://www.facebook.com/vacuzmachinefactory/videos/1849900919208187/?mibextid=9drbnH&s=yWDuG2&fs=e
2025-08-03 Walkie-textie Project
Uses a 12 key keyboard and texts like an old Nokia phone with multiple keypresses. http://www.technoblogy.com/show?2AON&fbclid=IwQ0xDSwL88ShjbGNrAvzr1WV4dG4DYWVtAjExAAEeX19OxuYe1QO8mrox71F6Zl_KCUppukTfJn3iSrHyEVT51xLwOmz2jhPHLKY_aem_is4HJCST113TNXDXWaTXGw
2025-05-31 FNIRSI DSO-TC4 Screen problem
This guy has the same problem as I have: the screen is scrambled in some places – top and bottom.
2025-05-13 How To Understand Any Electronic Circuit
Book Learn to Build Electronics Projects https://www.facebook.com/100064561517360/posts/pfbid02qmmukKwJbxWMs6HVLU11zNM5xfxdCX7nczjZdejgjrdGzsVs4RV8A7mNNgbTmJnAl/?mibextid=9drbnH&s=yWDuG2&fs=e
2024-11-08 RF Amp Using BD139 Power Transistors
He has a strong Aussie accent, a bit hard to understand. It’s a 28 min. YouTube video. He says BD139s have a fT of 250 MHz, but the datasheet I have does not specify any fT because the D in BD139 means they are a low frequency device, not meant for VHFs or RFs in
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2024-10-20 Diodes And Diode Properties
https://www.facebook.com/reel/1105829214300191/?mibextid=9drbnH
2024-10-08 Transistor History – Raytheon, CK722, etc.
Long article https://sites.google.com/site/transistorhistory/Home/us-semiconductor-manufacturers/raytheon-part-one-2 A comprehensive history of the Raytheon corporation. Also information about other companies.
2024-08-31 AM Transmitter, Low Power
This is an AM transmitter that this guy built. He says it’s rich in harmonics – it has no tuning nor low pass filtering and the stages are class C, no forward bias. It should have all the things used to minimize harmonics, like a low pass filter. Class C operation is used to maximize
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