Category: Engineering & Technology
1st. Condenser open. 2d. Ringer open. 3d. Hook contacts crossed. 4th. Desk stand cords or induction coil crossed. 5th. Extention bell open. 6th. Ringer short-circuited. 7th. Trouble at central office.
1st. Condenser open. 2d. Ringer open. 3d. Hook contacts crossed. 4th. Desk stand cords or induction coil crossed. 5th. Extention bell open. 6th. Ringer short-circuited. 7th. Tro...
2. CHAPTER II.Gives two hook clicks, and can be tested in very much the same way as a straight set, but the following points should be remembered: on sets that ring to ground an open ground w...
3. CHAPTER III.Tests of the transmitting and hearing circuits can be made in very much the same manner as in a straight set. On account of the relay coil being bridged between No. 2 and No. 3...
4. CHAPTER IV.=Station can’t call=: When a station can’t call, the trouble may be due to the line being open, or too much resistance in the line; or to the signal being open, or short-circuit...