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Type: Posts; User: nte

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  1. Replies
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    The BUHW plugs don't have a resistor but do have...

    The BUHW plugs don't have a resistor but do have a short reach.
  2. Replies
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    368,911

    NGK 2622 BUHW Tungsten Spark Plug ...

    NGK 2622 BUHW Tungsten Spark Plug

    http://www.ngk.com/product.aspx?zpid=9590
  3. Replies
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    On MSD switching to single discharge

    On MSD switching to single discharge
  4. Replies
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    11,628

    Are the solar panels going to have a fixed tilt...

    Are the solar panels going to have a fixed tilt position (mounted to the roof and not adjustable)? Will the orientation of the panels be 180degrees?

    One thing to keep in mind is the solar...
  5. Thread: Help with Mosfet

    by nte
    Replies
    15
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    5,539

    To better understand MOSFETs operation I recently...

    To better understand MOSFETs operation I recently did this experiment:
    I used a MOSFET, a 10K pot, an amp meter and an optional load.

    The pot connects to VCC and Ground, the wiper to the gate of...
  6. Thread: Help with Mosfet

    by nte
    Replies
    15
    Views
    5,539

    You may be able to use a Logic Level MOSFET with...

    You may be able to use a Logic Level MOSFET with something like a 100ohm resistor from the arduino pin to the gate and a 10k resistor from the gate to the ground. The 10k resistor prevents the gate...
  7. Replies
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    23,248

    No images but the text and links are there. ...

    No images but the text and links are there.

    "Introduction" Dowsing, Radionics, ESP, Natural Energies
  8. Thread: Light Therapy

    by nte
    Replies
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    46,330

    Very informative Vtech! I will have to try the...

    Very informative Vtech!

    I will have to try the cd4047 soon.
  9. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    LED Driver - Variable Constant Current Source with Current Limiting

    This is the Constant Current Source circuit from above with the addition of two components.

    This circuit will allow you to adjust the current flow up to a set limit.


    10k Potentiometer to...
  10. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    Ah I see. I keep changing my design too. Probably...

    Ah I see. I keep changing my design too. Probably going to build a single LED unit
  11. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    Thanks! What device is the MWO? Nice light...

    Thanks!

    What device is the MWO?

    Nice light and nice stand.

    The cord on the stylus looks good too
  12. Thread: Light Therapy

    by nte
    Replies
    116
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    46,330

    Cool, no rush

    Cool, no rush
  13. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    Vtech, Do you have a scope shot of the CC...

    Vtech,
    Do you have a scope shot of the CC circuit?
  14. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    Hi Pulse. I'm using an Arduino...

    Hi Pulse.

    I'm using an Arduino (microcontroller) to generate the frequencies to pulse the LEDs.

    The Arduino costs around $25-$30usd but it's a wonderful tool.

    Here's a simple blink LED...
  15. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    How is this working out?

    How is this working out?
  16. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    Repaired the light and replaced the components on...

    Repaired the light and replaced the components on the driver board. The constant current circuit is really sensitive to resistances. On one channel I had to make an adjustment of 0.18ohms.
  17. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    Progress

    I have been testing different circuits lately. Burned out 6 LEDs (5 IR and 1 red) in the process :fingerdance:

    In order for the CC circuit to work to its full potential in a pulsed light device,...
  18. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    When I tested the the first CC circuit I was...

    When I tested the the first CC circuit I was using a 13.8v PSU with a single 3.4v led. I put a LM7805 (i think) 5v regulator in the circuit to take some heat away from the MOSFET because I didnt have...
  19. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    711 LEDs'..... wow! Can't wait to see it! I also...

    711 LEDs'..... wow! Can't wait to see it! I also need to check out the brain tuner.
  20. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    How is this working out? Have you had a chance to...

    How is this working out? Have you had a chance to play with it?
  21. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    This is the current setup. ...

    This is the current setup.

    http://i1058.photobucket.com/albums/t411/nte111/Light%20Therapy%20Prototype/RLT_ARD_13W_NTE2369_zpsea7dd3da.png

    The Parts:
    Arduino Uno
    NTE 2396 MOSFET
    The resistor...
  22. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    It's 100k. I didn't try lowering it today but I...

    It's 100k. I didn't try lowering it today but I have tried lower values in the past and it didn't change anything that I could measure.

    RDS(on):
    irf510 - 0.54ohms
    nte2396 - 0.077ohms

    I need...
  23. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    Did some more tests today. Tried a nte2396...

    Did some more tests today.

    Tried a nte2396 mosfet instead of the irf510. The 2396 solved the current issue but I noticed that at 4672hz the current doesn't start to really flow until I increase...
  24. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    I have been playing with the CC Driver board...

    I have been playing with the CC Driver board trying to figure out why the current is lower then the test data I collected. It might have to do with extra resistances in the circuit.

    While testing...
  25. Thread: Light Therapy

    by nte
    Replies
    116
    Views
    46,330

    This instructable has a little more info and good...

    This instructable has a little more info and good info in the comments
    High Power LED Driver Circuits

    My R3 Resistors and current draw at 73hz:
    Blue - 1.6ohm - 100ma
    Red - 1.6ohm - 80ma
    IR -...
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