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  1. Martaine2005

    Charging for a laptop

    Thanks Hop @hevans1944 , I wasn’t aware that @Harald Kapp inserted a link. You either for that matter. I can’t see links on my phone, the text is black or extremely dark blue. I never had this problem before the site changed. Martin
  2. Martaine2005

    Charging for a laptop

    It will depend on the power bank output connectors. But basically a USB to barrel jack is required. Or barrel to barrel etc. Martin
  3. Martaine2005

    Charging for a laptop

    Plenty of 20v power banks. Your main issue would be getting the correct DC jack if it’s an unusual type. If it’s a normal DC barrel jack, get the correct size and make sure polarity is also correct. Martin
  4. Martaine2005

    Voice recognition

    Hello John!.
  5. Martaine2005

    Hardened insulation

    It’s a resin that the process is called chip on board or COB. The blob or ‘glob’ encapsulates the die.
  6. Martaine2005

    doubt smartphone battery

    The best ‘tip’ to reduce battery consumption is to turn the device off!. Martin
  7. Martaine2005

    T110C Hand Held Remote Transmitter

    I doubt the schematic is available. As long as the PCB is not cracked all over, it should be fixable. But these remotes have micro processors on board and if that got crushed or damaged, it’s game over as the code/software won’t be available either even if the IC is. Martin
  8. Martaine2005

    Motorcycle on sensor

    Depending on your bike, the fuse box should have 1 or 2 spare slots for ie - alarm or other third party accessories. But I would steer clear of connecting anything direct to the battery via a sensor. Lorries, loud exhausts, pops, bangs and knocks would mean a dead battery!. Stick to a good old...
  9. Martaine2005

    Electronics Project in Art Museum

    There are lots of electronics in museums already. It would also depend on whether the museum wants the piece/project. What’s behind the real question?. Martin
  10. Martaine2005

    LED screen repair

    That looks very much like a bad/loose connection. I would first open it and re-seat all connectors/ribbon cables. Then secondly, check for dry/cracked solder joints. Martin
  11. Martaine2005

    what is value of variable resistance “VR1” in Powercom UPS BNT-1000AP

    If you do measure it, mark exactly where it’s set now. Otherwise all sorts of strange things might happen!. Martin
  12. Martaine2005

    Resistor inside an inductor.

    I must admit that I haven’t been practicing with LTspice but will have a look over the weekend. Thanks. Martin
  13. Martaine2005

    Resistor inside an inductor.

    Thanks for all the input. This has made me read many sites about parasitic suppression. From what I read and understand, it does a bit of all the above suggestions. Still, way over my head. But depending on L and R will vary the frequency at which oscillation suppression is neutralised. Do I...
  14. Martaine2005

    Resistor inside an inductor.

    Here’s a photo.
  15. Martaine2005

    Resistor inside an inductor.

    Hi all, I have an amplifier that I’m cleaning the dust from inside and noticed that a resistor is inside an inductor. It’s the same on both amp sides. I’ve never seen or noticed this before. What’s the purpose of it?. I can’t see if it’s in parallel or not without taking the board out. TIA Martin
  16. Martaine2005

    my Casio calculator is not working

    Maybe the graphite or similar has worn off the back of the membrane behind the buttons?. If so, try a conductive paint. Plenty online for repairing remote controls etc. Or possibly a cracked PCB or broken trace?. Open it and look. Martin
  17. Martaine2005

    Intro From an artist/writer

    Welcome aboard. I am a cabinet maker by trade but love electronics as a hobby. Hopefully I can help with some tips to perfect your cabinet designs. Martin
  18. Martaine2005

    Merry Christmas

    ….And a happi..er new year. Martin
  19. Martaine2005

    Just Me

    Welcome José, I’m 55 and my mind has already deteriorated! Martin
  20. Martaine2005

    Technics SL-PD827 Problem

    Well that’s got to be a world record for the slowest response!. Martin
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