[NJARC] WWI headphone impedance

[George B. Shields, Jr.]

Impedance is 2,000 ohms. Block oscillator (should) drive them adequately.

-George-
  ----- Original Message ----- 
  From: Alex Magoun<mailto:amagoun at davidsarnoff.org> 
  To: NJARC<mailto:njarc at mailman.qth.net> 
  Sent: Thursday, June 24, 2004 9:49 PM
  Subject: [NJARC] WWI headphone impedance


      Joel Cohen is working with me on  a number of exhibit projects for the David Sarnoff
  Library, one of which involves attaching a block oscillator to our telegraph key and a
  pair of WE 509W headphones.  He's not on the internet, so I'm asking what's the
  impedance of the headphones and will the block oscillator drive them?
      thanks,
  Alex Magoun

  --
  Alexander B. Magoun Ph.D.
  Executive Director
  David Sarnoff Library
  CN 5300
  Princeton NJ 08543-5300

  609-734-2636
  f: 609-734-2339
  amagoun at davidsarnoff.org<mailto:amagoun at davidsarnoff.org>
  http://www.davidsarnoff.org/<http://www.davidsarnoff.org/>


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