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  1. Sunnysky

    Electronics seems like magic!

    All digital is still analog when there are binary decimation errors crossing the threshold or the prop delay and risetime delay cause a race condition which is digital. The result is an extremely high SNR so that the probability of signal crossing the threshold erroneously from random noise is...
  2. Sunnysky

    Electronics seems like magic!

    I never used Maxwell's Equations in my EE R&D career rather I used Heaviside's discoveries. It's a shame he never got credited because he was not officially an Engineer. But his discoveries were more significant to me.
  3. Sunnysky

    Superposition circuits principal?

    No. That is like shorting out the weaker cell. (weak = high Rs) Parallel voltage sources that differ in voltage will result in circulating currents where the source with the lower impedance dominates the superimposed parallel voltage in cells. I made a simulation with my estimate of the series...
  4. Sunnysky

    Is your pc or laptop not capable of using win 11?

    There are several ways; 1. upgrade with reg keys added to determine the max level to update and with bypass keys. using option to keep files and not clean install. 2. get the torrent for the iso for win21H2 with no TPM , save it , open using 7-zip to see and run setup.exe or use Rufus to burn...
  5. Sunnysky

    Is your pc or laptop not capable of using win 11?

    The best OS is the one that does more than you want and you know how to use it. I use win11-21H2 with TPM and SB disabled.
  6. Sunnysky

    Electronics seems like magic!

    There are some USB fire sticks with internet TV channels. usually low fee. Many countries
  7. Sunnysky

    USB Challenge for my Flight Sim Cockpit

  8. Sunnysky

    Electronics seems like magic!

    Blue text are digital Violet are analog Enter your address in Start here. Then check you antenna direction. I am just north of Toronto and aimed towards Buffalo to miss the CN Tower which is much stronger. I get > 30 OTA channels with a good antenna, but I don't it use much anymore and use...
  9. Sunnysky

    I need a really good inline connector

    For a strong adhesive I use a polyurethane sub-floor adhesive from any hardware store in large tubes as my go-to product. There is also a small clear gorilla glue for the hole in a clear thick paste that is like a soft silicone but not very strong and can peel off for ease of repair.
  10. Sunnysky

    Is your pc or laptop not capable of using win 11?

    My Win 11 is customized to relocate toolbar, use a classic start menu, disable all Metro Apps, use a full Win 10 explorer shell extensions and run A/V TV movie/series using Stremio.exe, sometimes Kodi, and HDHomerun, my dual digital TV tuner with OTA antenna. I removed many Scheduled tasks...
  11. Sunnysky

    Is your pc or laptop not capable of using win 11?

    Any old Win 10 PC can be upgraded to Win 11 if you disable TPM in the registry with an in-place live upgrade. Although I recommend what I used with an 8GB USB boot with WIN11 X64 PRO EN JULY ACTIVATED OFFICE 2021 TPM REMOVED.iso loaded using Rufus.exe. This has some nice benefits but you may...
  12. Sunnysky

    I need a really good inline connector

    This seems to need a "wire-to wire" connector pairs which exist in many sizes rated for your load and wire size. That is the easy part. The greater challenge is the mechanical interface. How to secure the connector, prevent insulation damage, make it repairable for sensors, and rugged enough...
  13. Sunnysky

    Burnt dmx splitter unit

    Why did it burn out? Where, show schematic.
  14. Sunnysky

    Can an 74AUP1G06 Inverter drive an LED?

    Any '74LVC will work. Reason: 3.6V max technology has low Ron ~ 25 ohms CMOS to 2.05V Orange from 3.3V , R=1.25V/20mA = 62 ohms then subtract 25 ohm driver, = 38 ohms (with tolerances) '74AUP is ~ 100 ohms open drain
  15. Sunnysky

    Know of a good reference book for electronics?

    http://electrical-engineering-portal.com/download-center/books-and-guides/electrical-engineering-3 http://www.apple1.fr/student_manual_for_the_art_of_electronics.pdf must read
  16. Sunnysky

    Digital Space Noise Detector

    Yes this clever Japanese design improved over the American initial design with a combined Local Oscillator (1~2MHz) and Mixer in Q1.
  17. Sunnysky

    Digital Space Noise Detector

    A good frequency mixer outputs only the sum + difference and is called a linear multiplier. This takes a lot more parts. A single non-linear transistor can mix with quadratic effects but linear out also feeds thru. Falstad simulator has a "Wilson multiplier" design under transistors.
  18. Sunnysky

    Simple UA741 and 2N3392 circuit troubleshooting

    Try again https://tinyurl.com/23q2u2pq
  19. Sunnysky

    Simple UA741 and 2N3392 circuit troubleshooting

    The problem using an NPN with any load towards 0V raises the voltage as Vbe is reverse biased. Using a PNP emitter out instead will sink current.
  20. Sunnysky

    Decoding Chinese UART Protocol

    This isn't Chinese , rather it looks more like RZ delay modulation or Manchester or Bi-phase encoding of clock and data. There are 3 methods. Mark, Level and space. First identify the baseband code, then if async or sync type, and then byte format, length, endian order, then parity, checksums...
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