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  1. Martaine2005

    WheatStone bridge

    Sorry, hit the send button. I will respond tomorrow.
  2. Martaine2005

    WheatStone bridge

    Firstly, it’s an astronaut
  3. Martaine2005

    WheatStone bridge

    @Ratch , he didn’t say “current flow”. He said “for current to flow”. If ‘current’ by itself meant ‘current flow’ it would be one word ‘currentflow’. However, current to flow, or charge to flow is acceptable in the English language. I think pedantic comes to mind. Afterall, we know what it is...
  4. Martaine2005

    Best place to buy used electronics?

    Post in electronics forums ‘for sale’ sections. Back of electronics magazines ‘items for sale’. Ebay. Gumtree. To name just a few. Sometimes there are auctions for closed down labs or repair shops. Just have to keep looking. Martin
  5. Martaine2005

    8-pole connectors

    Suggestions above are great. Another option is to use normal connectors and place them inside an IP67 case/housing. Google IP67 box. Finding something that will ‘resist’ normal physical wear will be difficult and expensive. By definition ‘normal physical wear’ is just that!. Martin
  6. Martaine2005

    Short-haul OTA TV rebroadcast?

    Perhaps a good quality amplified aerial (antenna). I would get a mobile satelite dish to receive all free to air satelite channels. Or you could of course subscribe to a network. Martin
  7. Martaine2005

    Car power to constant current 3.6A 50v boost converter

    Don’t apologise. It’s still an interesting read!. I know I have personally enjoyed and learned from this thread. Keep up your trial and error, that’s what this hobby is all about. Martin
  8. Martaine2005

    how to post a picture

    Don’t give up
  9. Martaine2005

    how to post a picture

    I think we have a translation problem here. Once you insert a pic, you don’t paste... Please try copy and then paste only!. Find your pic. Right click and copy. Then in the text area right click and paste!. Forget icon and URL. For now. Martin
  10. Martaine2005

    how to post a picture

    Right click- copy, then Right click - paste in the text area. Martin
  11. Martaine2005

    how to post a picture

    Ok if the pic is on pc. Click on insert. You then navigate to your picture. Martin
  12. Martaine2005

    Where is the catch?

    May be because you are trying to reply to a thread that is old, closed and only moderators have the privilege. Not 100% sure though. Martin
  13. Martaine2005

    how to post a picture

    I don’t understand what ‘option’ you refer to in the text area. Don’t use the image icon or URL. Copy a picture not ‘save’ then paste it in THIS area. Martin
  14. Martaine2005

    how to post a picture

    Works for me on iphone and Mozill Firefox. Martin
  15. Martaine2005

    how to post a picture

    When copying and pasteing don’t use the image icon. Simply paste it in the text area. Simply paste here. Martin
  16. Martaine2005

    Clicking/Buzzing relays

    It’s possible the relay isn’t getting enough current. Check the voltage from the capacitor to the relay. The capacitor may be bad. Failing that, post some clear close pics of both sides of the board and somebody here will be able to help you.
  17. Martaine2005

    how to post a picture

    Third row down next to smiley face in the reply window. If you got an error trying to post a picture, you will need to re-size it. I think about 100kb is the limit. Martin
  18. Martaine2005

    Help repairing old motorcycle voltage regulator

    A 12v test bulb wont help you. Use a multimeter.
  19. Martaine2005

    DSA 400 multimeter

    Man of many words.. Do you mean this https://www.sperryinstruments.com/en/Resources/Product-Documentation?
  20. Martaine2005

    Help repairing old motorcycle voltage regulator

    Ground... Frame and engine block
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