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  1. Martaine2005

    LED power supply help

    Sorry, should have also added that there isn't much to go wrong except the blob ic. The diodes can be checked with a multimeter and the thyristers can be shorted to check them. Martin
  2. Martaine2005

    LED power supply help

    Hi Ian, If the transformers are ok, there is a little work around to get rid of the controller altogether. Although only 24vac care should still be taken at all times. The two are more than likely negatives to each channel and the single wire is probably a common positive. Do you have a...
  3. Martaine2005

    LED power supply help

    Hi Ian, That may not be as simple as it sounds. It would depend on how they are wired and whether they are single or rgb leds. I think you need to check what the current is when all the leds are on constant. The controller should have that info on it. Ebay has hundreds of led driver/supplies. I...
  4. Martaine2005

    Turning old TVs into Monitors

    Ok, I have made a real mess here with wires, adapters, vga converters, s-video, wireless 2.4ghz, rca, scarts, dvr, and of course an old portable black and white tv. Sorry I don't have ten tv's. YES, in my living room!! No wonder the wife left me!! Bottom line is it works!:) In many...
  5. Martaine2005

    Arc Welder Simulator

    Perhaps Colin could update his website! I was kind enough to link to his website twice in this thread. But never mind. I wont bother in the future.. Martin
  6. Martaine2005

    Voltage when using USB Splitter

    Why can't you use a USB hub? Martin
  7. Martaine2005

    Turning old TVs into Monitors

    Hmm, I will try this in the morning. I have a few DVR's doing nothing... Martin
  8. Martaine2005

    Turning old TVs into Monitors

    The inputs for that type of equipment are typically RCA or BNC. BNC being more common these days. The laptop would be able to display all TV's as if they were cameras. *I have never tried this* but cannot see a reason why it wouldn't work. You would need scart to RCA and then an RCA to BNC...
  9. Martaine2005

    Turning old TVs into Monitors

    I suppose the quick answer is "yes" if you have a dedicated recording studio or a NEWS room. But, a laptop generally has an "output" for video siganals (external monitor). So all TV's would show the laptops screen. You could try and connect all the TV's to a multi channel CCTV...
  10. Martaine2005

    Circuit board trouble shooting fault.

    Buddylove. All programmers and decoders have serial numbers for obvious reasons! Car key CLONERS are specialist tools. You should contact the MLA here in the UK. It must have a Model and/or number on it! Martin
  11. Martaine2005

    Dishwasher Control Board Repair

    It sounds like a triac. Change your search to numbers only. Martin
  12. Martaine2005

    12v relay with time delay and reverse polarity

    I think you are all missing the point! He wants to squirt his windscreen to clean it and then suck the water back!! Saves keep filling the washer bottle.. Obviously he has a water meter! This only happens in the UK. We pay for the water, pay to clean it and then pay to use it again! Only, we do...
  13. Martaine2005

    4 players quiz game using relays

    Uncle Chris, That has to be the funniest post of 2015! I like making things too. See item (5) and (6).:p Martin
  14. Martaine2005

    Arc Welder Simulator

  15. Martaine2005

    Arc Welder Simulator

    Lol, only 1 minute slower that time Mr H! Martin
  16. Martaine2005

    Arc Welder Simulator

    You can speed it up and slow it down!. But only on / off faster or slower. Check out the web site Talkingelectronics.com and look at rail road electronics. Martin
  17. Martaine2005

    Arc Welder Simulator

    Colins' Talkingelectronics has a circuit. http://www.talkingelectronics.com/te_interactive_index.html EDIT: Scroll the left side for train circuits. Martin
  18. Martaine2005

    4 players quiz game using relays

    I was too scared to reply incase I missed something. But looks like I was thinking the same as Ken. Martin
  19. Martaine2005

    Microcontrollers

  20. Martaine2005

    electric motor

    A grinder with a motor? Slow cut meat grinder (industrial) or a metal grinding tool at high speed. Martin
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