Search results

  1. B

    How to circuit a motion sensor to drive 30 amp relay

    Think you will find it's not so much "heat" on it's own that the sensor detects but rather the heat movement across the inbuilt zones. Usually there are 3 vertical and perhaps a dozen or more, horizontally.
  2. B

    Low voltage indicator lamp of 110vac circuit

    I have the impression the Op wants to operate the indication remotely hence the original request for using the earth wire as one signal return. Who knows as there has been no reply.
  3. B

    Low voltage indicator lamp of 110vac circuit

    Reference to #2, found the link.........
  4. B

    How to circuit a motion sensor to drive 30 amp relay

    Being that it operates a stove, I would tend to give some thought to having it turn off BUT not turn back on again except by intervention. These things have a habit of false triggering from line surges or from insects or the cat for that matter, triggering it when no one is in attendance.
  5. B

    Low voltage indicator lamp of 110vac circuit

    No, the ground line is there for protection during fault conditions, not for general power supply connections. Any indicator would need to go across the switched line and neutral. There are low voltage, non-invasive circuits around, I believe one cropped up a couple of weeks ago. Fairly simple...
  6. B

    Resistor Question

    Flood here back in 2013 took all my gear and slowly getting back up there. Bought a little DSO150 just to get by until I get a decent scope once again. It's ....mmm...ok but....... if you get my drift.
  7. B

    Resistor Question

    There are instances where transistors use resistors such as this for ballast resistor. i.e. where more than one transistor is used in the output to share the current. Depends what you have . As far as the multimeter, use normal resistance range for resistors and diode test for diodes. If you...
  8. B

    Resistor Question

    Aren't these a metal oxide resistor (flameproof)...?? Some are designed to act like a fuse on the mains input area. For future note, I wouldn't use diode test range to get resistance values.
  9. B

    Soldering through parylene

    Perhaps ask the manufacturer? Don't know anyone that would do a test on the protective coating to determine what it was before doing a solder repair or whatever.
  10. B

    Unknown components

    Resonator is a 3 pin device an acts like a crystal with it's 2 capacitors. Just like the word says, resonator so it resonates at a particular frequency, just like a crystal only not quite as accurate. Most have the frequency stamped on the side. Used in many transmitter /receiver circuits...
  11. B

    Unknown components

    Photo is very blurry. Idea is to check the quality before you post. Closest one could be a resonator and furtherest looks like it might be an electrolytic cap, but only guessing. What seems to be the problem anyhow and do you suspect they may be faulty?
  12. B

    Repair electric kettle (Klarstein) - broken power switch

    While you're at it, get a certification. Oh, I don't know, maybe $30,000.00 should cover it. Don't be so ridiculous. It's a $30 jug for cryin' out loud.
  13. B

    Converting an old Generator for home use

    Honestly, for your own safety and that of others, get yourself a qualified electrician to take a look. For one thing, I imagine the 50 ft extension is way too long for many reasons and there is no mention of any safety cut breakers etc. ( Safety Switch, ELCB , RCD ....known by many things)
  14. B

    Repair electric kettle (Klarstein) - broken power switch

    Switch is both a mechanical flip flop arrangement and a steam temperature cut out. You definitely do not want to be bridging out any control switch. The centre contacts (photo 3) becoming open under the high current will eventually blow and you could end up with electrical burns. Bin it.
  15. B

    Draw air from enclosure or push it in?

    Front of the fan, air is under compression. Sit in front of a desk fan and see the difference if you turn it around and now face the back. Having said that, it depends on the installation. If the fan changes the air inside an enclosure, except for losses caused by friction or inadequate sizing...
  16. B

    Can you extend the leads on a fluorescent ballast (blown ballast?)

    Yes well you have had the advantage all the way through and for some reason, refused to supply a sketch of the setup or any photos that showed the same. So you could see your setup, we could not. All we can assume is that you finally connected it correctly and found by trial and error why you...
  17. B

    Modify Doorbell Receiver to run off 5v supply

    I'm guessing somewhere around where you have the 4.7v marked. Anyhow, the basic arrangement for a 3773 is below maybe it will help sort it.
  18. B

    Smoothing output of a full bridge

    Diagram explains it......Note that this is half wave but full wave works the same. Cheers Jorgo
  19. B

    Milwaukee Super Sawzall Intermittent Stopping

    Already told you what's wrong with it given the description the Op gave. Many parts are no longer available for this model anyhow.
  20. B

    Milwaukee Super Sawzall Intermittent Stopping

    We'll get parts off you then?
Top