SUMMARY:  Shows  the  need  for  a  buffer  amplifier  and  its
position  in  an  oscillator  circuit.  Explains  the  purpose  of  each
component  and  of  the  operation  of  the  electron-coupled  oscil-
lator. Discusses  frequency  multiplication,  with  the  results  ob-
tained in  the  output  when  tuning  the  buffer  amplifier.  Also
discusses  frequency  stability  and  output  power  of  the  circuit.
1.  Electron-coupled  oscillator,  1,  United  Slates.  Dept.
of  the  Air  Force.     II.  National  .-Xudiovisual  Center

74-704576


[TK7872.07]


621.381


National  Audiovisual  Center


Electronic  labyrinth.  [Motion  picture]     University  of
Southern  California,  Division  of  Cinema.  1967.
17  min.     sd,     color,      16  mm.
Formerly  entitled  THX  1 138  4  EB.
SUMMARY:  Presents  a  nightmare  impression  of  a  world
in  which  a  man  is  trying  to  escape  a  computerized  world
which  constantly  tracks  his  movemenls.
l.  Computers  and  civilization.  1.  Los  Angeles.  Univer-
sity of  Southern  California.  Dept.  of  Cinema.  II.  THX
1 138  4  EB-  (Motion  picture]

75-703169
[QA76]

791.43
University  of  Southern  California.  Division  of  Cinema
75


Electronic  structure  and  the  periodic  chart.  [Film-
sirip]     Ward's  Natural  Science  Establishment.  1975.
90  fr.      color       35  mm.        and  phonotapc:  1  cassclic.  45
min      (Ward's  solo-learn  system)

With  manual  and  student  review  sheets.
CREDITS:  Author.  Nina  Sandberg-

SUMMARY:  Explains  the  periodic  chart  and  its  relation-
ship to  the  electronic  structure  of  atoms  and  intriHJuccs  the.
use  of  the  chart  as  a  tool  for  predicting  the  behavior  of  ele-  '
ments.  With  captions.
1.  Periodic  law.     2.  Atomic  theory.     [1.  Periodic  law.     2.  \
Atomic  theory]       I.  Ward's  Natural  Science  Esiablishmcni,
inc.     II.  Scries;  Ward's  solo-learn  series.  [Filmstripj.  t

75-734716
[QD467]

546
Ward's  Natural  Science  Establishment
75


Films— Catalog,  1975


211


Electronics — communications  and  media,  II.  [Film-
strip]     Acoustifone  Corp.,  1973.
