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  1. kellys_eye

    HELLO I HAVE 360 CCTV CAMERA BULB NEED HELP

    You'v put a resistor in and it still doesn't work. There is another fault - a fault that caused the original fused resistor to blow in the first place. READ MY PREVIOUS POST. The fault could be anywhere AFTER the fusible resistor. Your posts indicate that you do not have the thinking ability...
  2. kellys_eye

    How to detect receiver with a wireless charger transmitter?

    Google for Wireless Charger Control IC and you'll find loads (at the likes of Mouser etc) where their datasheets are filled with information on how those devices work. Developing your own outside an already-available integrated solution is a fruitless exercise so relying on various...
  3. kellys_eye

    Black and decker espresso machine having trouble to turn on

    I've found that those machines have issues due to lack of maintenance (cleaning) - there's probably a blockage somewhere.
  4. kellys_eye

    why 74hc inputs are high by default?

    High impedance inputs are susceptible to noise triggering on a 'pulled-low' basis.
  5. kellys_eye

    Haptic Relaxation bracelet

    You would have to assess both the power output from the TE generator and the requirements of the load (vibration generator) to see if they would work together BEFORE even starting. Making a physical movement takes quite a lot of energy and may be beyond the capability of a body-worn TE device...
  6. kellys_eye

    wiring diagram does not match...

    If the temp sensor is a thermistor you wouldn't need to adapt for 'polarity' - it's entirely passive and will work in either orientation.
  7. kellys_eye

    Green Technology

    1. It's usually very expensive. 2. It's inevitably under developed. 3. It can't stand on its own two feet (economically i.e. usually requires subsidies) 4. It's nearly always over-stated in efficiency/effectiveness. 5. It's quite often not even green (if you check the whole life cycle)...
  8. kellys_eye

    wiring diagram does not match...

    If the unit worked previously how would the wires 'swap' themselves in the interim?
  9. kellys_eye

    Modified sinewave to pretty good sinewave?

    That's about as bad as a 'modified sinewave' can possible get! Only two steps (pos and neg!) What does it look like under load?
  10. kellys_eye

    repair Tribest Sedona SD-P9000 dehydrator -- low DC voltage from power board: maybe rectifiers or caps?

    That's a picture of the thermal switch with inline thermal fuse - not the kind of sensor I'm referring to though. Look for a pair of wires disappearing into some heatshrink. Inside the heatsink you'll find a string of diodes used as a temperature sensor (assuming your dehumidifier is based on...
  11. kellys_eye

    repair Tribest Sedona SD-P9000 dehydrator -- low DC voltage from power board: maybe rectifiers or caps?

    Commonly, those dehumidifiers tend to stop working when one of the off-board sensors detects a fault - in my experience I've seen condensation collecting around a temperature sensor that caused the wires to that sensor to corrode away and stopping the operation completely. I was 'fooled' into...
  12. kellys_eye

    Samsung LED Monitor with Dark Bands

    If the display is back-lit by CFLs (quite common for that period) then one of them is nearly dud and set to fail completely in a short time. Short of replacing the tube (perhaps all of them given its age) there's little you can do to fix it. Tubes will be hard to find (I suspect) and even...
  13. kellys_eye

    Powering projects from marine power circuit.

    That's a great little product! I wish I was still involved in the marine electronics side of life (did it for 40 years including a long spell as self employed installer., maintainer and repairer of all forms of marine nav, comms etc). I'm still considering buying a boat if only to use it as...
  14. kellys_eye

    Faraday Cube

    There is no device that will do as you want. The only way to achieve it is to feed a cable through the wall (via a gland) to the external antenna.
  15. kellys_eye

    Help identifying resistor

    Brown (1), black (0), silver (x.01) = 0.1 ohms. The gold is the 5% tolerance and the last (brown) band usually indicates temperature coefficient. A 0.1 ohms resistor of 2 watts (looks like to me....) would work - as would other wattages OVER that. Values of sub-1 ohm are usually wirewound...
  16. kellys_eye

    General Shortouts and Opens

    All I can say is: "step back from the equipment and drop that test meter"
  17. kellys_eye

    HELLO I HAVE 360 CCTV CAMERA BULB NEED HELP

    Read my previous post.
  18. kellys_eye

    DAQC2 Plate

    My crystal ball is throwing a 404 error. It might be prudent to provide some context (links, documents etc) to enable someone one to participate in your query.
  19. kellys_eye

    Help identifying resistor

    Is physical space limited? Will the repair be visible? If you fit the part does it fix the fault?
  20. kellys_eye

    Use & Power 128 x 128 OLED Display with Conductive Thread

    If the wires run inside the hoodie what's the problem with using 'ordinary' wire which just happens to work?
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