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  1. Arouse1973

    Chokes

    You need to look at the use of ferrite beads for the low MHz range. Each signal line may need one. Also as Harald mentioned Layout and incorrect decoupling or insufficient decoupling won't help either. Adam
  2. Arouse1973

    Sensorless BLDC motor driven synchronously.....hrmmm...

    A few things I am thinking of is Jerky start up, not knowing if the magnet is north or south, getting the phase right so you push the magnet at the correct time. If you are just energising the coil in one direction will this not limit your speed. Adam
  3. Arouse1973

    How to switch off an audio signal

    Yes looks like it will work. You could use this to short the mic to ground as mentioned by Externet. But depends on your amp circuit but we don't know what you using. Adam
  4. Arouse1973

    How to switch off an audio signal

    Shame on the other Forums. You come to the right one, you will not get this on here. I mean that, this is not what EP is about. If you do please let me know. Adam
  5. Arouse1973

    How to switch off an audio signal

    http://www.analog.com/en/switchesmultiplexers/analog-switches/products/index.html Adam
  6. Arouse1973

    How to switch off an audio signal

    Have a look at analog switches. Adam
  7. Arouse1973

    How to switch off an audio signal

    Hello can you just explain it again. What do you mean one of the wires pass through the switch. Adam
  8. Arouse1973

    2 pole low frequency shelving filter design

    Yes quite, as asked. Adam
  9. Arouse1973

    Induction cooker pans?

    Great conclusion. Yes higher frequecy must be it for copper. I think I mentioned that earlier. Put to bed I think. Good discusion Merlin thankyou. Adam
  10. Arouse1973

    2 pole low frequency shelving filter design

    Hello Northy Yes you can, but you can also connect a capacitor to the bottom of R15 to isolate any D.C. Where is your filter components? Adam
  11. Arouse1973

    Evaporative Air Con PCB

    Hi Chris Yes they look fine. It is better to have the component in place than not at all. Adam
  12. Arouse1973

    Evaporative Air Con PCB

    Probably for a bit of filtering / noise suppression. This should be a Y-Rated capacitor if the appliance has an earthed metal case. Ceramic types tend to go short circuit when they fail which is why the fuse popped. Take a close picture of the capacitor, we might be able to find one for you. Adam
  13. Arouse1973

    Induction cooker pans?

    Ok so this is the only other thing I can offer. After that it becomes a much more difficult problem for me and I would have to do some more research. When we think about the current in a wire and the heat generated due to the Joules/s losses we tend to think about voltage current and...
  14. Arouse1973

    Tips for learning recursion?

    How the hell do you guys get this? I feel a rash coming on. I love you BC108 :)
  15. Arouse1973

    Need help with calculations for a ribbon speaker cable!

    Hey Bat man Bob. What you got in that utility belt? A small Robin I presume. Adam
  16. Arouse1973

    Is Nickel Plated Stainless Steel Resistant to Ammonium Persulfate Etching

    It is a peroxgen so it can disolve metal. Like copper, Iron , zinc and oh yeah nickel. Adam
  17. Arouse1973

    Need help with calculations for a ribbon speaker cable!

    So this is the problem then. I was hoping you would say this. The reason for the low inductance is simple if there are two conductors in parallel current on one will induce a current on the other (Faradays Law). The coupled currents will flow in the opposite direction, this is Lenz law. the...
  18. Arouse1973

    Need help with calculations for a ribbon speaker cable!

    I got the impression this was an audio amplifier? Is it not? Adam
  19. Arouse1973

    Need help with calculations for a ribbon speaker cable!

    Nice plant by the way schefflera arboricola if I am not mistaken :) You still need to tell me how you measured the inductance? Adam
  20. Arouse1973

    Need help with calculations for a ribbon speaker cable!

    That's Bat-man with super sonic hearing then :)
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