Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!ucsd!ucbvax!hplabs!hpfcdc!hpislx!hpmtlx!dc
From: dc@hpmtlx.HP.COM ($Dave_Crook@hpmtldc)
Newsgroups: sci.electronics
Subject: Need VCR head theory of operation
Message-ID: <880006@hpmtlx.HP.COM>
Date: 10 Jul 89 22:03:55 GMT
Organization: HP Manufacturing Test Division - Loveland, CO
Lines: 12

How is the electrical signal taken out of the vcr rotating head?  Is is
inductive, capacitive, inductive, slip rings etc?

Also, how is the audio taken off the tape?  I can understand the audio coming
off of a separate linear track.  But someone told me that some machines
put the audio down on the helical track.  This would appear to me to be
extremely difficult to achieve.  It would be hard to get scan to scan 
closure without some audible artifact.


Dave Crook
dc@hpmtlx.hp.com