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  1. Martaine2005

    48V.

    48V is usually known as phantom power. Found on audio mixers and professional mixing desks. But the difference you ask : One is positive and the other is negative. Can you elaborate on your question? Martin
  2. Martaine2005

    Making the connection

    Damn, I’ve been doing it wrong all these years!. Well spotted Dave, I certainly could have phrased it better. Martin
  3. Martaine2005

    Help diagnose LTQ70 soldering iron no heat

    The neon will light, it’s connected across the mains input. Martin
  4. Martaine2005

    Making the connection

    Erm.. it stops it interfering with other bare wires or conductive objects by insulating it against short circuit. That looks ok for your first attempt. Try pinching down on the metal tabs to hold the yellow insulation too. Don’t forget to slide the silicone sleeves over to insulate the joint...
  5. Martaine2005

    Making the connection

    Yes, I thought the yellow wire was fairly obviously too long and needed cutting. I should have mentioned it. Cutting off the existing and replacing with in-line butt connectors still requires a crimper but wont allow for quick disconnect/connect. But up to the OP I guess. Martin
  6. Martaine2005

    Making the connection

    You’ll have to terminate the yellow wire. Push the silicone sleeve on the yellow wire first then you have to crimp the bullet shaped piece to hold the yellow wire tightly. Make sure it is metal to metal contact. You can use pliers to squeeze/squash the bullet connector but a crimper is the...
  7. Martaine2005

    CD player leaving powdery residue on CDs

    I have absolutely no clue what could cause this but I have a couple of questions. 1. Are they the same CD players and similar age?. 2. Do you have young children? 3. Is there anything above the players like plants or linen? Martin
  8. Martaine2005

    Current Direction

    This thread is from 2014. You’re flogging a dead horse. Martin
  9. Martaine2005

    Direction of DC and AC current with diodes.

    Oh no @davenn , You know "current flow" is incorrect. It literally means "charge flow flow". But it was in 2011 so all is forgiven Martin
  10. Martaine2005

    Hi,

    Welcome to EP Practical. Martin
  11. Martaine2005

    Pool bonding DC

    Bonding is not earthing and vice versa. I'd wait for a resident sparky to fill you in with the technical info. But it sounds like there is a difference in earth potential. I too await, as this is interesting. Martin
  12. Martaine2005

    HELP - Sound Bar Won't Power Back On

    Can you also get photos of the power supply board please. I doubt the tactile switches are faulty, but possible. You can put your multimeter across each switch in continuity mode and press the switches to check them. Martin
  13. Martaine2005

    Just a thread of thanx

    Another ramble about nothing. A rabbit virus?, a good trick?. You cannot possibly compare the two to be good. I feel like a social worker. Don’t do it, it’s not worth it!. Now calm down, take a deep breath and tell uncle Martin all about it. I am listening. Martin
  14. Martaine2005

    Does this video impress u guys or is it a FAIL

    Hopeless maybe, but if you try explaining what you mean, we may understand. My kettle is more powerful than my clothes iron. My clothes iron is more powerful than my soldering iron. Martin
  15. Martaine2005

    Does this video impress u guys or is it a FAIL

    Again, this makes no sense. A resistor serves a purpose as does a transistor. They are a world apart. I can make a 1N4007 turn into a zener. But who wants a zener effect at 90 or 100V. Use the appropriate tool for the job. What’s your point? Martin
  16. Martaine2005

    Need recommendations for button/switch, springy and loud

    Adam Savage from Mythbusters made a working replica of the captains chair. You’ll find it on YouTube. It may have been in one of his one day builds. Martin
  17. Martaine2005

    Fairy light Timer

    You’ll probably find the fairly lights controller is current limited to a few mA’s and the snowman LEDs are current limited to 10, 15 or 20mA. So using your bench PSU will have no effect on the controllers output. It may damage the controller though. You could always put the fairy lights in the...
  18. Martaine2005

    HELP - Sound Bar Won't Power Back On

    Sounds like a firmware issue if you have to keep unplugging and resetting. Having said that, it could be a component fault not keeping settings. Open it up and take some pictures. Upload them here. Martin
  19. Martaine2005

    Does this video impress u guys or is it a FAIL

    I’m trying to understand the point of this. Martin
  20. Martaine2005

    Sony ICD-PX240 voice recorder button not working

    Yes, I saw the bottom row too. But the OP is talking about the middle two not working. The Enter and Record buttons. Martin
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