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  1. Martaine2005

    1N4937 diode

    I would have thought any 1n4xxx diode would work. Martin
  2. Martaine2005

    1N4937 diode

    Hi Viliuks, There are lots.. What are you using it for? Do you need 600v? Martin
  3. Martaine2005

    Power consumption of vibratory pump when pumping against closed valve

    Sorry to lower the tone here but.... Look at the home page with all the forum lists....It caught my eye.:D Martin
  4. Martaine2005

    lasers power supply problem

    Did you check the current as @cjdelphi suggested? Also, what wire are you using? and length? It might be high resistance too. But you are expecting a lot from such a small supply. Martin
  5. Martaine2005

    lasers power supply problem

    720 mA is assuming maximum 15 mA.. 480mA @ 10mA... 1 Amp should be plenty. Jumpers as in, another positive and negative to the side where voltage drops. Martin
  6. Martaine2005

    20 Watt LED Dimmer Circuit diagram

    I think I got the wrong flag!!!! Deleted..... Oops, no I didn't.:) Martin
  7. Martaine2005

    DVD player wont play

    It sounds like there may be a mechanical failure. Motor, micro switch, laser stuck or something like that. I would normally suggest taking the top off (UNPLUGGED) and manually open and close the tray looking for contacts or switches. And move the laser carefully on it's guides to see if it got...
  8. Martaine2005

    Help: Datasheet Acronyms

    As Dave pointed out, acronyms and datasheets for what? But as you're on a ship, nautical comes to mind.. http://www.rina.org.uk/maritime_acronyms1.html http://msi.nga.mil/MSISiteContent/StaticFiles/NAV_PUBS/APN/Acronyms.pdf Martin
  9. Martaine2005

    Pionero VSX 1021 K Home Theater Receiver Volume Problem .

    Spooky!!!
  10. Martaine2005

    How to Charge an 8 AA NiMH Battery Holder?

    I am positive the batteries will like you for it! Nothing wrong with fast charging occasionally, but people don't let the cell cool properly before use. So they are using a 'still cooking' battery.. Martin
  11. Martaine2005

    Multi location thermostat

  12. Martaine2005

    Multi location thermostat

    Now that is dry skin!! That thing needs E45 or similar...:p
  13. Martaine2005

    Multi location thermostat

    John, that's a little below the belt! Who said I have sk.......never mind! Exactly....I stay downstairs.. Uncle Chriiiiiiis....Got a spare humid free room, not too cold! But warm upstairs? And do you have cookies?:)
  14. Martaine2005

    Transforming hammer help

    Did you actually look at the channel I suggested? I think you will be surprised how much work is involved in a simple project. Martin
  15. Martaine2005

    Multi location thermostat

    British heatwave..
  16. Martaine2005

    latching pushbutton help

    Uncle Chris, I have checked everywhere. I don't know what you are talking about.. Marty.
  17. Martaine2005

    Multi location thermostat

    I don't know much about logic between two thermostats. As already pointed out, a thermostat will only turn on or off at the set temperature selected. Normally the highest area is the hottest area. So if it's colder downstairs, put the thermostat downstairs. But us Brits have loads of thermostats...
  18. Martaine2005

    20 Watt LED Dimmer Circuit diagram

    Colin, you jumped in too quickly... I was slowly leading https://www.electronicspoint.com/threads/led-pwm-driver.230256/ Martin
  19. Martaine2005

    How to Charge an 8 AA NiMH Battery Holder?

    Hi Jake, Tenergy make batteries and chargers! Chargers seem to last years...However, if batteries lasted years...No more Tenergy!!! It's never a good idea to fast charge batteries, let alone only fast charge them. They will eventually die sooner than charging over night without the battery...
  20. Martaine2005

    DVD player wont play

    It's quite important when trying to diagnose a problem to answer in as much detail as you can. Does it make any noises at all? A little whirring perhaps. Or a clunk click boom! Nah.. Insert the disc, close the tray and listen hard..... Then repeat without the disc and listen hard..... Is it...
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