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  1. Martaine2005

    4.5v or 6v for a 5.6 battery

    Do you still have the original charger? Perhaps it's a simple fix. Martin
  2. Martaine2005

    Mainboard with reworks need comparison to same type

    This picture is from Syntaur. It's an upgrade board. Changes a 21 voice to a 32 voice board. Info here. Martin
  3. Martaine2005

    Mainboard with reworks need comparison to same type

    Hi, you have two threads for the same unit? I found a picture of the main board here on ebay. It might show you something. But different revisions might show different 'bodge' wires from the factory. This one has a long blue bodge wire on the back. It may be better for you to show us photos of...
  4. Martaine2005

    Sourcing a Trigger Switch

    Looks like aliexpress might have very similar trigger switches. Does yours have a lock button? What tool is it for? Martin
  5. Martaine2005

    Exceeding rated current for power input connector

    Your colleague is correct about having headroom. You shouldn't run components at 100%, more like 75%. Just remember that the power supply can supply up to Max 20A and your load will only use what it needs. Have you actually measured the load current? Martin
  6. Martaine2005

    Led Bicycle Light

    Thanks for the pictures. I can't see anything obvious either. One thing you could do is compare the other light innards. Especially the battery. It looks very tight and possibly swollen. But due to the shape of your lights, it could be normal. Do you have access to a multimeter? Martin
  7. Martaine2005

    Led Bicycle Light

    That's a shame. You can take it apart and see if anything obvious stands out, like a loose charge port or broken wire to the battery. They are fairly common faults and happen either by transport vibration or simply poor workmanship. If you take it apart, show us some close clear photos of the...
  8. Martaine2005

    Car proximity sensor lead connectors.

    Hi David and welcome to EP, You could probably get ideas from 'nano jst' connector or 'micro jst'. Also 'Molex' connectors. But how often does one remove a bumper? It could be just as good to cut, solder and heat shrink when required. Not as nice though admittedly. EDIT: Nothing special is...
  9. Martaine2005

    Led Bicycle Light

    Perhaps you can leave it on to discharge the battery, then see if it charges. But without some sort of test tool, it'll be very difficult to know. Is it possible to return the lights under warranty rather than try a repair which will void the warranty?. Somebody might have an idea of checking...
  10. Martaine2005

    Led Bicycle Light

    Hi Sickpuppy, is the 2nd light supposed to illuminate while charging? My guess is yes. Although the LED is not lit, is it in fact charging? Are you sure? Martin
  11. Martaine2005

    Pioneer HTZ121 DVD no sound

    I can't source much info on your unit. Have you got the user manual? Here you can find it. There are so many ways and hacks for resetting equipment but I cannot find one for yours. Clicking sound? A single click like a thud? or fast continuous clicking? Martin
  12. Martaine2005

    Toast or Useable

    If you are close to an airport, look up that airports frequencies. Heathrow airport , Heathrow, is mine. If you enjoy air shows, you can find the frequencies of that airshow. UK Marine are here. That's just a couple of examples. But your location, setup and antenna will play a big part. Martin
  13. Martaine2005

    Pioneer HTZ121 DVD no sound

    It sounds like you had a short circuit at the speaker terminals which cleared after speaker removal. Probably a strand or two of speaker wire? Then upon reconnection, possibly vibration, caused the short again? Do you have wires or speaker connectors? Also sounds like the amp is blown now. Martin
  14. Martaine2005

    How Can I Resist?

    You may not require 20mA. Some LEDs are still very bright at 5mA or less. Martin
  15. Martaine2005

    Jacobs ladder help

    I think that box contains the electronic ignition PCB. The coil is the cylindrical unit in photo 3. Martin
  16. Martaine2005

    Toast or Useable

    Not at all. I am not familiar with your model, probably a Bearcat of some guise. If you only want to eavesdrop on police or cell phones, you're out of luck. If on the other hand, CB, PMR, HAM, security, construction sites etc, it will still work just fine. I have several scanners that I use...
  17. Martaine2005

    How do I connect the pull-up resistor to pin 7 of the LM555 timer?

    How is R3 adjustable? Shouldn't the wiper be connected to pin 7? Martin
  18. Martaine2005

    Help!!!!

    This interactive site owned by one of the forum members is a good resource for beginners and intermediates. Enter the interactive area and scroll the left hand side for projects and tutorials. It has full explanations of how the circuit works and why it works. Then you can use LTspice to...
  19. Martaine2005

    WILLY LOMAN WAS JUST TOO DARNED ETHICAL

    Feel free, I have to admit I was dying inside. Sign of the times Dave :p Martin
  20. Martaine2005

    WILLY LOMAN WAS JUST TOO DARNED ETHICAL

    Not ethical. Even Mcdonalds have to put 'HOT' on their coffee cups!. A sign of the times for stupid people. I call them 'digital people'. As kids, we used to torture ants with a magnifying glass and the sun. This summer, my son was annoying ants in the garden. I told him about the magnifier when...
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