Alert icon
We're changing our privacy policy. This stuff matters.  Learn more  Dismiss

Old PA speaker from school.

Loading...

Sign in or sign up now!
5,681
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on Dec 9, 2007

An old intercom speaker form my school hooked up to my Califone cassette recorder.

Category:

Education

Tags:

License:

Standard YouTube License

  • likes, 2 dislikes

Link to this comment:

Share to:

Uploader Comments (CassetteMaster)

  • why is there a thansformer? and how to make the transformer on the speaker to work?

  • @Sido75288 It is a "70-volt line" transformer. When the amp and speakers were placed very far apart within a building, they ran a step-up transformer on the amp and then stepped it down at the speaker. It used the higher voltage to sent the signal better across the resistance built up from such long wires.

  • My school uses old RCA speakers from the 1950-1960's era.

  • @LNERMallard Awesome.

  • ok will someone xplain this to me ok all my speaaker have that lil thing in it what is it for (the thing on the cone)

  • The thing on the cone is called a "wizzer". It is used to reproduce treble frequencies, like a tweeter cone built on a woofer. It does OK, but not as good as an actual tweeter.

see all

All Comments (57)

Sign In or Sign Up now to post a comment!
  • i have some in my old school like that and what is the transformer do

  • WHATS THE NAME OF THE SONG

  • ah! okay! thank you:D i have too an transformer but i don't use him... it is an transfromer from church-speakersXD he transforms 30/400 v ~ but thanks for the answer:D

  • what taps does it have?

  • My elementary class had that tape recorder..for reading books out loud, they were awesome.

View all Comments »
Loading...

0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more