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Updated: June 18, 2025
This coil usually has a resistance of about 75 ohms and the meaning of the ohmic resistance of a receiver and its bearing on the sensitiveness of it will be explained a little farther along. How a Wireless Headphone Is Made. For wireless work a receiver of the watch-case type is used and nearly always two such receivers are connected with a headband.
Now the wire used for winding good receivers is usually No. 40, and this has a diameter of .0031 inch; consequently, when you know the ohmic resistance you get an idea of the number of turns of wire and from this you gather in a general way what the sensitivity of the receiver is. Each phone of a headset should be wound to the same resistance, and these are connected in series as shown.
This coil usually has a resistance of about 75 ohms and the meaning of the ohmic resistance of a receiver and its bearing on the sensitiveness of it will be explained a little farther along. How a Wireless Headphone Is Made. For wireless work a receiver of the watch-case type is used and nearly always two such receivers are connected with a headband.
When a current is flowing through a circuit the material of which the wire is made not only opposes its passage this is called its ohmic resistance but a counter-electromotive force to the current is set up due to the inductive effects of the current on itself and this is called impedance.
When a current is flowing through a circuit the material of which the wire is made not only opposes its passage this is called its ohmic resistance but a counter-electromotive force to the current is set up due to the inductive effects of the current on itself and this is called impedance.
Now the wire used for winding good receivers is usually No. 40, and this has a diameter of .0031 inch; consequently, when you know the ohmic resistance you get an idea of the number of turns of wire and from this you gather in a general way what the sensitivity of the receiver is. Each phone of a headset should be wound to the same resistance, and these are connected in series as shown.
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