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HANDBOOK OF PROJECTION FOR
What should the projectionist do when he suspects the exciting lamp light beam to be out of proper adjustment? 1144
RCA Photo-EIectric Cell
Describe it , 1146
Describe the photo-electric cell current operations.. 1146 Of what does the entire RCA sound reproduction system consist ? 1146
Sound Amplifying System
Of what does it consist? 1147
Interchangeability
May all systems be projected on RCA equipment?.. 1147 RCA Disc Record Reproduction
Is RCA disc record reproduction apparatus the same as that of other systems ? 1167
RCA Amplifiers
RCA amplifiers Pages 1148 to 1158
How many types of amplifier does RCA supply? 1148
How are they marked ? 1148
Name the advantages possessed by certain types of
amplifier 1156
Describe the RCA input control panel 1157
Describe the RCA sound change-over and volume
control 1159
Powers Cinephone, The
What kind of sound track does the Powers Cinephone use ? 1 161
Will Powers Cinephone fit any projector? 1161
Is Powers Cinephone equipment well made? v. 1161
Is Powers Cinephone equipment so made that it may be handled well and efficiently?. 1161
How are the general elements of Powers Cinephone arranged? 1162
How many compartments has Powers Cinephone and what does each contain ? 1162
At what must the exciting lamp current value be kept? 1163
Of what does the main amplifier system consist?... 1166
Disc Reproduction Apparatus, Using
What must the projectionist who secures good results
from disc records do? 1171
What about the starting marks ? 1171
What is important when a projector other than Simplex is used ? 1171
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