Back to the beginning of the Museum Web Site

 

 

The voltage amplifier is turned "on" by turning the battery switch to the "ON" position. When this is done the filaments of the voltage amplifier and the indicator lamp to the left of the test meter should light.

The power amplifier is switched "on" by turning the power amplifier switch to the "ON" position. The monitoring speaker should be plugged into the monitoring jack on the power amplifier panel.

199. Troubles on the PG-4 Equipment. -The troubles which may be experienced with the PG-4 equipments are similar to those discussed for the PG-3 equipments in section 193. See also Chapter XIV.

Since there is but one voltage amplifier and one power amplifier included in this equipment it is very important that the amplifiers be kept in good condition. It is advisable to keep a supply of tubes, which have been previously tested, ready for emergency use. Testing the equipment before the show starts may forestall trouble which might otherwise occur during the show.

22


Chapter Thirteen Pages
[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12]
[13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24]
[25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35]

Chapter
[1] [2] [3] [4] [5] [6] [7] [8] [9]
[10] [11] [12] [13] [14] [15]

©1930 RCA Photophone, Inc
HTML Transcription & Graphic Reproductions ©2000 The American WideScreen Museum
All Rights Reserved