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  1. Martaine2005

    Hello, Welcome! (Introduce yourself)

    Hello Liliaa46, welcome aboard. Martin
  2. Martaine2005

    Black Nyko UBoost (Extended Battery for WiiU GamePad) not working as expected

    Yes, batteries fail over time and don’t always show visible signs, ie swelling/bloating. They can also appear/measure fully charged but drop off very quickly under load. Or after a day or two just drain. You can put two batteries in PARALLEL to double the overall Amps, extending usage time (same...
  3. Martaine2005

    help (connecting projector to powerbank)

    You’re talking in dollars so I assume USA?. Black is positive and white is neutral. So it appears that you got the polarity wrong?. Martin
  4. Martaine2005

    No sound from turntable

    Normally, a turntable requires a pre-amp. This can easily be achieved by using an audio mixer. If however, it works with one amp and not another, wouldn’t you suspect that amp?. Martin
  5. Martaine2005

    Can anyone identify this connector on an Ultimaker 2+ ?

    Hi Robert, I doubt you would find the exact connectors but JST have similar looking connectors. Do an image search for JST PCB mount connectors. You will need to know the pin pitch if you only want one connector. May be simpler and cheaper to just replace it with similar?. Martin
  6. Martaine2005

    "Portable" system to output power from solar to a notebook

    The shop told you items to get. They are about right. If not, the panels will not be portable but very big!.
  7. Martaine2005

    Will this work?

    “If it will, what can I do about a ground.” The charger only has two wires so it’s probably double insulated. No GND connection required. Just make sure the polarity is correct (same) in both connectors. Martin
  8. Martaine2005

    Education & Jobs in Electronics

    We’re all being trolled!. Not a single answer just more questions.
  9. Martaine2005

    Education & Jobs in Electronics

    @HAROLDYOUNG Every job advertisement will give the required qualifications necessary for the given vacancy. However, networking or family members already in the industry can help you through the door and then it’s up to you to prove your worth. You don’t say what experience you have or what...
  10. Martaine2005

    I need some help with making a pcb

    Not sure I follow. Are you making the arduino circuit on a PCB?. The normal way is to use headers but that is kind of stacking. Martin
  11. Martaine2005

    Men of the forum - help me w engagement ring

    Agreed. But not many!
  12. Martaine2005

    problem with 48vdc motor destroys relay

    Hello MrNobody, Try putting the diode across the relay coil. Martin
  13. Martaine2005

    Prosound 1600 amplifier repair

    Very doubtful one exists, unless someone reverse engineered it and drew one. But again, doubtful as it’s a cheap Maplin amp. You might get more help by describing the amps problem. Martin
  14. Martaine2005

    HELP! Issues with Lighter Heating Coil

    Interesting project. What’s the specifications of the lighter coil?. I would have thought that these are very low current and high voltage, powered by a piezo igniter?. Out of curiosity, try adding a series connected torch bulb to limit the current. Also a schematic of the circuit would be...
  15. Martaine2005

    Input Hum - Yorkville Amplifier

    Hi JerryT, This is typical electrolytic capacitors in the power supply. Furthermore, hum altering with volume. Again, input hum being amplified. Should be a simple fix. Martin
  16. Martaine2005

    Good Audio Speaker Reference Book

    He might have 13 years ago:)
  17. Martaine2005

    Artificial Intelligence

    If the likes of ‘HAL’ , ‘Stealth’ or ‘I,Robot’ are the future, then we have good reason to be afraid. But if the reality is similar to ‘Bicentennial Man’, then the future looks good. It only takes evil intentions to make life a misery and only humans can be deliberately evil. Martin
  18. Martaine2005

    Help identifying a transistor

    Tweenies?, Teletubbies? Or Playskool?.
  19. Martaine2005

    Ebike battery

    I think you would need a car battery and an inverter. Hardly portable and totally impractical (IMHO). Then you would have to charge the car battery!. Martin
  20. Martaine2005

    standby switch karaoke player

    I doubt it. But try powering the unit while holding the standby switch. If it turns on, you may be able to jump the switch. Martin
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