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  1. Martaine2005

    JVC GR-C7U is having issues accepting NiCad batteries and charger, though the camcorder can turn on.

    Ok. Personally, I think 11.1V is too high for a 9.6V device. This obviously depends on the circuitry. It may work for a while but heat build up on components may destroy it. You could put two series diodes in to drop a volt or so. I presume you will take the 18650s out and charge them with the...
  2. Martaine2005

    JVC GR-C7U is having issues accepting NiCad batteries and charger, though the camcorder can turn on.

    Are the Zenith batteries the same voltage and amperage as the JVC original?. Martin
  3. Martaine2005

    How can I simplify it? equivalent resistance

    Start from the far right. Calculate resistors in series and replace those with a single resistor value. Then working left, calculate the resistors in parallel and replace them with a single value. Martin
  4. Martaine2005

    Hello from Oz

    Welcome aboard Paul, With your knowledge, you can also help learners like myself and others. I look forward to your future posts. Martin
  5. Martaine2005

    JVC GR-C7U is having issues accepting NiCad batteries and charger, though the camcorder can turn on.

    What NiCad battery and what voltage is it?. What is the ‘back up’one and what voltage?. What is ‘ modded’ with the Li-Ion?. Sounds like you have three batteries/packs connected together. How are they connected?. Using a dead battery with good ones will drain the good ones and won’t give...
  6. Martaine2005

    Samsung Galaxy A30 dead phone

    Yes, those USB volt/Amp testers are very useful. I use mine all the time. Martin
  7. Martaine2005

    Samsung Galaxy A30 dead phone

    Possibilities are many. You’ll need to open it. I would first check the charging port (usb?) for good connections to the board. After that, you’ll Probably be better to view some phone repair videos on YouTube for more in depth options. You WILL need a good magnifier!. The components are tiny...
  8. Martaine2005

    Samsung Galaxy A30 dead phone

    Have you tried a different charger and/or lead? Martin
  9. Martaine2005

    Privacy lost

  10. Martaine2005

    Privacy lost

    @bertus , there is nothing wrong with your privacy. In fact, it’s so good, we can’t see the image :) Martin
  11. Martaine2005

    automatic measurement and compensation of glucose level

    I don’t think this should be DIY or even a good idea, but have a read of this. It’s arduino based. Martin
  12. Martaine2005

    Stage Line 500W amp repair project

    Here, you’ll find out about the waveforms @hevans1944 mentioned. https://en.wikipedia.org/wiki/Waveform Martin
  13. Martaine2005

    Fuse details

    R15 is 0.15 Ohms as @bertus explained. Martin
  14. Martaine2005

    What wire do I need

    mm^2 Thank you, I learn something every day. Martin
  15. Martaine2005

    What wire do I need

    Yes Harald, that is what I mean, but I don’t have that option on my phone :) Martin
  16. Martaine2005

    What wire do I need

    Hi, 4x2+1.5mm twin & earth cable is 4mm conductors with 1.5mm earth. Depending on the distance, you may need 6mm. Martin
  17. Martaine2005

    B&D dh1245 bench grinder capacitor match problem

    Hi, it appears to be a start capacitor. Modern equivalents seem to be 124 - 149μF. And 110 - 125V. Stay within the specs above but the voltage can be higher without any issues. Martin
  18. Martaine2005

    Treadmill problem: Tempo Evolve

    Ah ok, thanks for that. I just wanted you to confirm whether the ‘cables’ were IEC mains cables or AC to DC power supplies. Martin
  19. Martaine2005

    Treadmill problem: Tempo Evolve

    Can you give us the details of both ‘cables’?. You mention a computer cable and the original cable. Martin
  20. Martaine2005

    Anyone help me with translate? Ger to eng

    I can help you. Ger = German Eng = English Is this what you mean? :) Martin
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