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  1. Martaine2005

    would this mini Field generator work - Link in

    No!
  2. Martaine2005

    Arduino Nano built in RGB LEDs won't turn off

    Did you read my link?. It has a sketch.
  3. Martaine2005

    Arduino Nano built in RGB LEDs won't turn off

    Have a look Here for an example sketch.
  4. Martaine2005

    Arduino Nano built in RGB LEDs won't turn off

    What Nano have you got? The 33BLE is active low, meaning they’re on. High turns the LED off.
  5. Martaine2005

    tek 2712 identification of a destroyed component

    Can you see the reference designator for that particular component?. Your photo is not sharp enough to see. But as mentioned above, more than likely a battery or electrolytic capacitor. Edit: you see no markings for it.
  6. Martaine2005

    Sony Beta Alignment Tape

    You’re better off going to a forum or website that deals in this type of media for a value. If you have an issue with a Betamax player, feel free to ask on this forum.
  7. Martaine2005

    110/120V inline ammeter.

    Thanks for the ideas. I opted for a cheap easy solution. I purchased a meter (photo below) and will house it a plastic box with 110 and 240v plugs along with 16A and 32A outlets. Hopefully it’ll be somewhat accurate:). It’s supposedly 50VAC - 500VAC, 0A - 120A. It will never see anything above 30A.
  8. Martaine2005

    110/120V inline ammeter.

    Yes, I did start doing that. But then I needed a 16A to 32A adapter and vice versa. I was hoping for an all in one inline ammeter similar to the photo I found on the WWW.:)
  9. Martaine2005

    110/120V inline ammeter.

    Hi forum friends, It’s not always easy or possible to open site tools (110V) to measure current by opening the circuit and putting the meter in series. I am looking for a plug in device inline with the tool and transformer. 240V versions are readily available everywhere. The 110V transformers...
  10. Martaine2005

    Changing USB Powered Security Cameras to AC 120

    Yes of course. The easiest solution is to use a 120VAC to 5VDC step down power supply. The cameras should have a label with power specifications or at least in the instruction manual. Get a power supply with more current (A) than actually required to allow for headroom and running cooler.
  11. Martaine2005

    Electronic device/solution idea

    A Faraday cage for women and children?. Of course, have to be on wheels!.
  12. Martaine2005

    Electronic device/solution idea

    All About Circuits. SA = Se&ual Assau£&
  13. Martaine2005

    Electronic device/solution idea

    It already exists. An electric chair!!
  14. Martaine2005

    Book light improvement

    Double up on the battery. If it lasted ‘10 times’, it should last 20 times.
  15. Martaine2005

    RF booster or repeater

    Example on the theory. Your query seems to have changed somewhat. Now you’re asking about transmitting RF. And not causing interference. This is not advisable. Use the appropriate repeater/booster that’s readily available and doesn’t require a license.
  16. Martaine2005

    RF booster or repeater

    A quick google search suggests that car radios and mobile phone signals are indeed repeated via specialised ‘leaky feed coax’ running the length of the tunnel walls. While mobile, cellular signals use a base station in the tunnels technical room. Again, using specialised ‘leaky feed’ cable or...
  17. Martaine2005

    LED TESTER c4 value

    C4 is a 25V 470uF capacitor. Hope that helps.
  18. Martaine2005

    Is this true? Diamond battery. Cool

    I doubt that this is anywhere possible. A diamond is indeed a great land made stone, but a radioactive capacitor or voltage storage it certainly isn’t. Not everything on the WWW is true.
  19. Martaine2005

    Cat door sensor jammed by steel (metal) enforced wall

    The second to last photo and the last photo show the overall aperture. 1/2” plastic strips inside the aperture forming a barrier. This means opening the aperture/hole a further 1/2” all round.
  20. Martaine2005

    Cat door sensor jammed by steel (metal) enforced wall

    Yes, metal can effect radio waves of RFID. It can disrupt and de-tune the radio signal. Plastic will form a barrier.
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