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Thread: Anyone have a Spin Doctor gauss meter they are willing to sell?

  1. #71
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    Quote Originally Posted by Rog_B View Post
    Great job! They look awesome. Do you think you could make a little You Tube video of one in action, showing the various functions? That would be really helpful!
    I think that this is possible. But since I have a lot of amp repairs now, this may take a week or so.

    Mark

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  2. #72
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    This is great news. I'd like to join the queue for one of them if they're not all already spoken for.

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    I've got few questions about features of the meter. Here they are:

    - Range +/- 1670 Gs. Over (and below) this value the meter displays "OVER" text
    - The polarity of the magnetic field is displayed as letter "N" or "S"
    - 0.96" "OLED display (good visibility in dark rooms)
    - Li-Po 320 mAh rechargeable battery - can be recharged with typical 5V phone power supply (with micro USB plug)
    - auto power off - after 1 minute of not in use
    - auto zero set at startup
    - tactile push buttons: POWER, MODE, START/STOP
    - 3 modes: CURRENT (the actual value of the magnetic field), AVERAGE (the average value of the magnetic field - can be stopped/restarted with START/STOP button) and PEAK (the maximum value - can be reset with the START/STOP button)
    - 200 samples per second in all modes
    - ABS enclosure (grey or black)
    - graphical representation of the battery displayed on the screen
    - when USB charger is connected, USB symbol displayed on the screen
    - charging status LED
    - low power consumption (10mA in active mode, 70uA in sleep mode)

    Since the meter is never switched off (it only enters sleep mode) there is also a RESET button but I never had to use it.

    Mark

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    Last edited by MarkusBass; 03-13-2019 at 01:24 PM.

  4. #74
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    Quote Originally Posted by MarkusBass View Post
    I've got few questions about features of the meter. Here they are:

    - Range +/- 1670 Gs. Over (and below) this value the meter displays "OVER" text
    - The polarity of the magnetic field is displayed as letter "N" or "S"
    - 0.96" "OLED display (good visibility in dark rooms)
    - Li-Po 320 mAh rechargeable battery - can be recharged with typical 5V phone power supply (with micro USB plug)
    - auto power off - after 1 minute of not in use
    - auto zero set at startup
    - tactile push buttons: POWER, MODE, START/STOP
    - 3 modes: CURRENT (the actual value of the magnetic field), AVERAGE (the average value of the magnetic field - can be stopped/restarted with START/STOP button) and PEAK (the maximum value - can be reset with the START/STOP button)
    - 200 samples per second in all modes
    - ABS enclosure (grey or black)
    - graphical representation of the battery displayed on the screen
    - when USB charger is connected, USB symbol displayed on the screen
    - charging status LED
    - low power consumption (10mA in active mode, 70uA in sleep mode)

    Since the meter is never switched off (it only enters sleep mode) there is also a RESET button but I never had to use it.

    Mark
    Hi Mark,

    I canít PM yet as Iíve not posted since joining a while back (will have to fix that), but Iíd like to put my name down for one of these if possible. Preferably in black. :-)

    Best regards,
    Tim

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  5. #75
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    Quote Originally Posted by Timmy! View Post
    I canít PM yet as Iíve not posted since joining a while back
    I think that you need at least 4 posts in order to be able to PM other users. In the meantime you can update your profile and add your location. It is very important whether it's UK or the US.

    Mark

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  6. #76
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    Quote Originally Posted by MarkusBass View Post
    I think that you need at least 4 posts in order to be able to PM other users. In the meantime you can update your profile and add your location. It is very important whether it's UK or the US.

    Mark
    Thanks Mark. I canít edit my profile without the 4 posts either (think this makes 4!), but Iím in the UK.

    Edit: 4 posts in, location updated but still canít PM. :-(

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    Last edited by Timmy!; 03-13-2019 at 11:54 PM.

  7. #77
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    Super great job

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  8. #78
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    Marcus,

    I presume you have a battery management/charge monitoring chip for the LIPO? Sorry if you've already gone over all this.


    OK I see you have a charging status led so that probably means you have everything taken care of. ;-)

    Marketing wise you might want to sell a version back to the slot car enthusiasts with a little car image instead of the guitar.

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  9. #79
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    Quote Originally Posted by David King View Post
    Marcus,

    I presume you have a battery management/charge monitoring chip for the LIPO? Sorry if you've already gone over all this.
    OK I see you have a charging status led so that probably means you have everything taken care of. ;-)
    Yes, of course. I use 3.7V LiPo which is charged to 4.2V and then charging is switched off by the battery management chip. So you may leave the meter connected to the USB charger for as long as you want and nothing wrong will happen.
    Quote Originally Posted by David King View Post
    Marketing wise you might want to sell a version back to the slot car enthusiasts with a little car image instead of the guitar.
    Do they need to measure magnetic field? I can put any image on the meter but the problem is that usually there is a minimum order quote (usually quite high). Do you know such guys?

    Mark

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  10. #80
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    Just because they don't have tubes doesn't mean they don't have feelings! - glebert

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    Quote Originally Posted by MarkusBass View Post
    Do they need to measure magnetic field? I can put any image on the meter but the problem is that usually there is a minimum order quote (usually quite high). Do you know such guys?

    Mark
    I believe that's what the Spin Doctor was originally designed/sold for! I think it's something to do with matching magnets in motors for balance?

    I assume that the discontinuation of the Spin Doctor has left the same gap in the slot car market as it did the pickup winders market.

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  12. #82
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    It is used both for the motor magnets and the traction magnets. See links in post #80.

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  13. #83
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    Quote Originally Posted by g1 View Post
    It is used both for the motor magnets and the traction magnets. See links in post #80.
    Thanks, the second link was the most important to clarify the issue. Very nice keyboard - I would need to have at least 50 orders to manufacture such a keyboard (which most probably won't happen). Also, I would need to change the enclosure and the magnet sensor(s). I do have all the elements needed for such a meter but this would be a lot of work.

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