LESSON 1
FUNDAMENTALS OF VIDEO RECORDERS
TASK
Describe the theory and terminology of video recorders.
CONDITIONS
Given information, illustrations, and schematic diagrams about terms relating to the theory and
terminology of video recorders.
STANDARDS
Demonstrate competency of the task skills and knowledge by correctly responding to 80 percent of the
multiple-choice test questions covering theory and terminology of the fundamentals of video recorders.
REFERENCES
None
Learning Event 1:
FUNDAMENTALS OF MAGNETIC RECORDING
1.
Magnetic tape consists of thin plastic backing coated with a binder containing iron oxide
particles. Signals are recorded on the tape with an electromagnet called a record head (fig 1-1). The
iron core of the record head is U-shaped and the small gap between the poles is filled with a
nonmagnetic material. The core and gap form a complete magnetic circuit for the lines of magnetic flux
which appear whenever a signal current is fed into the coil.
1
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