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  1. Dazza

    Schematics Variable current 12v 60A to 0A

    Ante, can you give me any suggestions, on how I can reduce the output to 0v, so than the sensor will start responding from 0v to the maximum that I want. Yes wielding that soldering iron, after a couple of beers probably isn't a good idea ;D.
  2. Dazza

    Schematics Variable current 12v 60A to 0A

    yes Ante, something did go wrong it was U2, I replaced it with another and it worked, and I tried removing the diode again and it worked find like you said it would ;D. Removing the diode didn't make any difference, except for having one less component which is good. The output from U1 is...
  3. Dazza

    6v drill battery

    This one might be better ;D. http://www.uoguelph.ca/~antoon/circ/bcgla2.htm
  4. Dazza

    6v drill battery

    Have a look at this one :). http://www.uoguelph.ca/~antoon/gadgets/carnc12.htm
  5. Dazza

    6v drill battery

    Sorry stuee, I haven't been much help ;D, I'll have a search and see if I can come up with something.
  6. Dazza

    6v drill battery

    Thankfully no skunks. We do have bats, their called flying foxes/fruit bats fairly large, we do have a few colonies here in Bundaberg, and they litter the sky late in the afternoon. When I lived up north Townsville area, when I was very young we use to go camping at a place called Rocky ponds...
  7. Dazza

    6v drill battery

    Oh yes, you would fit in nicely here audioguru 8), you have the humour that is important, you just have to learn the lingo. Then I could give you all my failed projects, for you to fix for me ;D. That would give ante a well deserved break, from helping me with my projects :P. Yes it does take...
  8. Dazza

    Schematics Variable current 12v 60A to 0A

    Well I wasn't to sure about your suggestion of removing D1, but I tried it anyway ;D. You're answer to(what happened without D1?) Well the Hall sensor didn't like having high voltage shoved up its B_M 12v that is ;D. There is one more Hall sensor left at Dick Smith, I'll have to be extra...
  9. Dazza

    6v drill battery

    That's right dunny, it was also known as the Thunderbox. And yes we to now have running water, and a new gizmo called a shower. Now we don't have to saddle up the Wallabies to hop down to the creek for a bath. It's amazing the technology these days :o. Audioguru, it's good to have a laugh...
  10. Dazza

    6v drill battery

    Back in the early days many many moons ago, we used a stick with some cloth wrapped around one end, soaked in oil so it would burn, it was called the torch, it helped us find our way to the Dunny without tripping over ;D. Then it was replaced by the light globe, so we also call this a torch...
  11. Dazza

    electronics workbench

    Find yourself a nice big bench and then put everything on it ;D, when you run out of room by another bench or put up some shelves . Make it up as you go ;D. There is snapshots of members work benches somewhere on electronic lab.
  12. Dazza

    6v drill battery

    Audioguro, are you sure you're in the right trade, maybe you should consider stand-up comedy, you have posted enough good material on these forms to get you started. ;D ;D ;D ;D lol
  13. Dazza

    Schematics Variable current 12v 60A to 0A

    Well with some trial and error, actually it was all trial and error ;D, I came up with this circuit. I managed to get an output from 0.56V TO 10V. With the addition of C1, I seem to get a nice smooth rise and fall in voltage. I can't work out how to get rid of the last 0.56V. how are we looking...
  14. Dazza

    Schematics Variable current 12v 60A to 0A

    Sorry ante, I should have mentioned that I was using the (UGN3503U) Hall affect sensor ::). That's why I only supply the circuit with 5V ;D.
  15. Dazza

    Playing with hydrogen

    Steven, I posted a short clip a while back, of one of my experiments :). It's on page 1, Schematics Variable current 12v 60A to 0A under circuits/general request (Hydrogen_7.zip)
  16. Dazza

    Schematics Variable current 12v 60A to 0A

    Well I tried this circuit that I posted with a 5V supply, and it worked in a kind of fashion :-\, I'm not to sure where to take it from here. I didn't have the IC specified so I tried a few different ones that I had lain around. With a LM358M I got 2.43V and then the voltage steadily reached...
  17. Dazza

    Playing with hydrogen

    Sounds like you're having fun playing with hydrogen Steven ;D, you wont see a flame as hydrogen burns clear, this is one of the dangers of a hydrogen flame, you can't see it but you know it's there when it burns you :(. Hydrogen ignites violently although it is difficult to ignite as it is...
  18. Dazza

    Need a couple of datasheets.

    Thanks John :).
  19. Dazza

    Need a couple of datasheets.

    Either one of then will be fine thanks. (1) NEC IRELAND D8749HC (2) DQ2817A-300
  20. Dazza

    Schematics Variable current 12v 60A to 0A

    Yes ante, membrane with a magnet attached to it was the first way I thought of. Then I realised it would be much simpler to attach an electromagnet and sensor, to the moving parts of a regular mechanical pressure gauge. I think an electromagnet would be better for fine tuning and alignment...
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