[sci.electronics] recording via induction <> adding a singal via induction

mndell@cs.ruu.nl (Mike Dell) (03/14/91)

In <4793@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes:

>In article <3012@hexagon.se> daniel@hexagon.se (Daniel Deimert) writes:
>>I was wondering if it would be possible to record an analogue signal
>>(i.e.  the one in a loud-speaker's cable) on a tape recorder.  Or rather
>>if the resulting signal is of good or poor quality.  S/N ratio?
>
>	One can obtain a reasonably good signal through use of an inductive
>clamp-on current probe intended for oscillographic measurement purposes.
>Both Tektronix and Hewlett-Packard manufacture such probes, which permit
>a conductor diameter up to about 3/16 inch.  It is necessary to amplify
>the output of the current probe.  It is also important to remember that
>the current probe goes over only *one* conductor of a cable.


  Would it also be possible to PUT a signal on a cable from a microphone
  to a recorder with induction? What would one need for it?


  Mike


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Mike Dell, (DCS)
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