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  1. Martaine2005

    How to test these speakers?

    Have a look online for the installation instructions for the V12 amplifier. Although it’s very simple to wire it and test it, reversing the polarity can also easily damage it. There are three connections (GND, REM and B+). GND is battery negative, REM is remote on from a head unit and B+ is...
  2. Martaine2005

    Wiring security a camera to doorbell wires

    ^ and also battery powered cameras too.
  3. Martaine2005

    I want to know all of the maths concerning this scissor mechanism!

    That’s the best comment you’ve made since you started. Your math has drifted into pico and micro. Why?. Tools to measure this costs millions of pounds. Just my 2 cents.
  4. Martaine2005

    Where to start/post project to do with my grandson

  5. Martaine2005

    Sallen Key Low Pass Filter, bandpass filter

    Thanks for the update. Double check and triple check YOUR wiring !!
  6. Martaine2005

    Touch pad not behaving!!

    As much as I admire @Bluejets contribution, sometimes it’s not the answer!. If you have time and the patience, it can SOMETIMES be repaired. A blob (black potting) chip, forget it or reverse engineer.
  7. Martaine2005

    Sallen Key Low Pass Filter, bandpass filter

    Download the app for a tone generator, it will do the job.
  8. Martaine2005

    pls help need to pass for my finals

    Or, the OP didn’t listen in class?. I opt for my scenario!
  9. Martaine2005

    Molex battery connector placement problem

    Yes, a few times. That’s why the manufacturer sometimes puts glue over the mating halves. And also because different manufacturers have different tolerances.
  10. Martaine2005

    MOSFET identification.

    Hi @bertus , You were spot on!. A new new controller arrived today and the MOSFET is a 3006. Now I’ll order one to repair the other. Thank you.
  11. Martaine2005

    Simple Questions for led tv Backlight

    Yes, most are ‘line of sight’. I have my controller at the bottom of the TV. I only have about 15mm gap at the bottom so I velcroed the controller on the back but sticking down enough for the remote to work. Mine do work on the TVs USB and draw under 1.5A. I did however have to diffuse the strip...
  12. Martaine2005

    MOSFET identification.

    Definitely not 3077. The 30 is obviously correct but I can’t fathom the last two. I’ll check those out and probably just over rate it as I’m not bean counting. It’s a customer repair that Makita don’t supply these components, although I can buy the heat sink and pozi screw! What a joke.
  13. Martaine2005

    MOSFET identification.

    Hi guys and gals, as per the description, can anybody identify it? Thanks in advance PS, it’s from a cordless 20V max drill. Martin
  14. Martaine2005

    Comedy Thread

    And that’s when I realise the yanks do have a similar sense of humour as us Brits!
  15. Martaine2005

    Best way to put off Fire from a Mobile Robot

    Like a human being with smell, sight, hearing and a fire extinguisher:)
  16. Martaine2005

    help fixing fluorescent lamp circuit

    Did you take the photos with a potato?:) I can see some terrible solder joints. Hopefully the forum can accept my image.
  17. Martaine2005

    Wagner Steam Cleaner Handle Overheating

    If you take the lance apart, you may find rubber ‘O’ rings that have perished. This happens with jet washes (pressure washers) too.
  18. Martaine2005

    LED strip with waving sensor

    The function you would like is more than likely in the code on the microcontroller.
  19. Martaine2005

    LED strip with waving sensor

    Did this work properly from new and now has a problem?. If it’s new, have you tried leaving the LEDs on for a period of time to see if the sensor requires start up time?. Or holding your hand over the sensor for 30 seconds?.
  20. Martaine2005

    Vista 20p keypad doesn’t respond

    Has your programming omitted the keypad?. Show your code in the code box. Some good programmers on here that may able to help.
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