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Re: [TCML] Tesla Coil Computer Interference



dave pierson wrote:

varia:
...measuring 'stuff' going back down the power line...
  In a previous life, the official way of doing this
  involved a split ferrite core device, called an
  'absorption clamp', lots of trick calibration,
  expensive.  Basically: a 'sophisticated current
  probe'.  (There are international standards for
  what PCs, etc can 'push back into the line'.
Much Lower than Tesla Coiling is likely to generate.)

  I've no idea what is used for such now.  Measuring
  this 'sort of thing' as noted, takes a lot of
  experiment, understanding, and not trusting the
  test equipment without thought.

...as to trashing PCs, etc...
  There are standards (also) for what 'line oddities'
  a PC 'should' withstand.  Tesla Coil Strays,
  conducted and radiated are WAY LARGER than 'the
  usual spec'.  Separate, circuits, added filtering,
  both 'source' and 'victim', unplugging are
  indicated.  PC PSU's are almost always 'sort of on':
  unplugging is the safest...
Actually the problem is more one of coupling through the power line and direct capacitive coupling. The coils are all so small compared to a wavelength that real radiation is negligible.

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