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 Organizations / Canada / rtlToronto / *6104 (-5)
  Re: 8475 -- motors and steering Oh My
 
(...) It doesn't matter. DMM's are not good at measuring pulsed signals. (unless you have one of the more expensive true-RMS meters which can calculate the average of a non-sinusoidal waveform. You really need an oscilloscope for this. (...) It will (...) (22 years ago, 30-Dec-02, to lugnet.org.ca.rtltoronto)
 
  Things I should never do....
 
Even though I was warned by Calum..... Even though all the stuff I have ever read in my electronics magazines says don't bother.... Even against that little voice in my head that said DON'T....... I thought I'd try to repair that monitor flicker. So (...) (22 years ago, 30-Dec-02, to lugnet.org.ca.rtltoronto)
 
  Re: 8475 -- motors and steering Oh My
 
(...) cool. Thanks Trevyn. now if only I had an O-scope and knew what Th, T1, and Tt meant?? ;) Chris (22 years ago, 29-Dec-02, to lugnet.org.ca.rtltoronto)
 
  Re: 8475 until a little while ago was seemed to be lacking.....
 
(...) someone (calum) should call Swiss Chalet and ask if they have been inundated with calls asking about "when those lego guys meet?" Chris (22 years ago, 29-Dec-02, to lugnet.org.ca.rtltoronto)
 
  Re: 8475 -- motors and steering Oh My
 
It is indeed PWM. I got out my oscilliscope and checked it, and here are the results I got: At setting 1 (closest to off): Th: 1ms Tl: 2ms Tt: 3ms 9Vpp At setting 2: Th: 2ms Tl: 1ms Tt: 3ms 9Vpp And at full on, it's just 9v DC. (...) (22 years ago, 29-Dec-02, to lugnet.org.ca.rtltoronto)


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