×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

reverse inductive signal?

reverse inductive signal?

reverse inductive signal?

(OP)
I have a quick question maybe some of you may know the answer to.
I have little to no experience with electromagnetic principles so please keep that in mind.
I was wondering if it was possible to do the reverse of this project and instead of extracting audio from this mechanism to instead use it to send audio through it and onto the lines. In otherwords if this was to be plugged into the audio out port of a device like a computer or radio would I be able to send audible sound through the line?  I don't have any interest in extracting the sound from the lines but rather the opposite.

       http://www.unterzuber.com/tap.html

thanks

RE: reverse inductive signal?

Technically yes, practically no.

TTFN

RE: reverse inductive signal?

(OP)
Can someone elaborate on that?

RE: reverse inductive signal?

Obviously, inductive coupling could potentially induce a signal INTO the phone line.

BUT, most of the inductive couplers are effectively step-DOWN transformers, since the signal on the phone line is quite large.  Therefore, you would need an excessively large voltage or a step-UP transformer.  In either case, it's very likely that the extra voltage excursions will damage the phone equipment on the line.

TTFN

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources