We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
MANAGERS AND PROJECTIONISTS 1345
Lay the condenser inside the amplifier compartment ;
both it and its wiring are then shielded.
WARNING. — Exercise great care in using a condenser thus in other circuits. In some it may kill all sound. In others only the high frequencies.
Should the 45-volt terminal show a ground, it may be between the switch and the transformer compartment. If beyond this point, it may be either in the VI plate circuit or in the V2 plate circuit. Unsolder the wire on terminal No. 5 on the input transformer. If the ground still shows up, then it is either in the VI plate circuit or in the wire we have just unsoldered. The coupling resistance of this plate can hardly become grounded, therefore it is safe to assume the ground to be in the wiring, in the spring which is connected to No. 4 lug or in the socket.
A ground in the plate end of the input transformer may show a low reading on the testing voltmeter when the test lead is touched to the lower end of the primary. It therefore is best to test the plate terminal before testing the other end. In this way a ground near the plate terminal will give a fairly high reading — in fact, a reading very close to the full battery voltage, in this case about 45. Western Electric equipment, remember.
Should we find a ground in the transformer primary, break the connections in the center of the winding, that is to say, at terminals 1 and 6. We may then test to see which half of the winding is grounded. If the part from 2 to 1 shows fault, take the wire soldered to lug No. 2 and solder it to No. 6. Leave disconnected the wire which formerly connected Nos. 1 and 6.
If it is the other half that is grounded, solder the